From earlier *-s-ta-i , from -s -ta (like in -usta -i
-sto (front vowel harmony variant -stö linguistic notation -stO )
Forms collective nouns from nouns indicating individual things. kirja ( “ book ” ) + -sto → kirjasto ( “ library ” ) laiva ( “ ship ” ) + -sto → laivasto ( “ fleet ” ) puu ( “ tree ” ) + -sto → puisto ( “ park ” ) oppi ( “ education, doctrine ” ) + -sto → opisto ( “ academy, institute ” ) The most common genitive and partitive plural forms for -sto nouns are -stojen and -stoja , which correspond to declension type 1 (valo ). Kielitoimiston sanakirja classifies many but not all three-syllable words with this suffix as type 2 (palvelu ) despite the fact that the forms ending in -stoiden /-stoitten and -stoita are rarely used in practice.
Inflection of -sto (Kotus type 1/valo
nominative
-sto -stot
genitive
-ston
-stojen
partitive
-stoa
-stoja
illative
-stoon
-stoihin
singular
plural
nominative
-sto -stot
accusative
nom.
-sto -stot
gen.
-ston
genitive
-ston
-stojen
partitive
-stoa
-stoja
inessive
-stossa
-stoissa
elative
-stosta
-stoista
illative
-stoon
-stoihin
adessive
-stolla
-stoilla
ablative
-stolta
-stoilta
allative
-stolle
-stoille
essive
-stona
-stoina
translative
-stoksi
-stoiksi
abessive
-stotta
-stoitta
instructive
—
-stoin
comitative
See the possessive forms below.
first-person singular possessor
singular
plural
nominative
-stoni
-stoni
accusative
nom.
-stoni
-stoni
gen.
-stoni
genitive
-stoni
-stojeni
partitive
-stoani
-stojani
inessive
-stossani
-stoissani
elative
-stostani
-stoistani
illative
-stooni
-stoihini
adessive
-stollani
-stoillani
ablative
-stoltani
-stoiltani
allative
-stolleni
-stoilleni
essive
-stonani
-stoinani
translative
-stokseni
-stoikseni
abessive
-stottani
-stoittani
instructive
—
—
comitative
—
-stoineni
second-person singular possessor
singular
plural
nominative
-stosi
-stosi
accusative
nom.
-stosi
-stosi
gen.
-stosi
genitive
-stosi
-stojesi
partitive
-stoasi
-stojasi
inessive
-stossasi
-stoissasi
elative
-stostasi
-stoistasi
illative
-stoosi
-stoihisi
adessive
-stollasi
-stoillasi
ablative
-stoltasi
-stoiltasi
allative
-stollesi
-stoillesi
essive
-stonasi
-stoinasi
translative
-stoksesi
-stoiksesi
abessive
-stottasi
-stoittasi
instructive
—
—
comitative
—
-stoinesi
first-person plural possessor
singular
plural
nominative
-stomme
-stomme
accusative
nom.
-stomme
-stomme
gen.
-stomme
genitive
-stomme
-stojemme
partitive
-stoamme
-stojamme
inessive
-stossamme
-stoissamme
elative
-stostamme
-stoistamme
illative
-stoomme
-stoihimme
adessive
-stollamme
-stoillamme
ablative
-stoltamme
-stoiltamme
allative
-stollemme
-stoillemme
essive
-stonamme
-stoinamme
translative
-stoksemme
-stoiksemme
abessive
-stottamme
-stoittamme
instructive
—
—
comitative
—
-stoinemme
second-person plural possessor
singular
plural
nominative
-stonne
-stonne
accusative
nom.
-stonne
-stonne
gen.
-stonne
genitive
-stonne
-stojenne
partitive
-stoanne
-stojanne
inessive
-stossanne
-stoissanne
elative
-stostanne
-stoistanne
illative
-stoonne
-stoihinne
adessive
-stollanne
-stoillanne
ablative
-stoltanne
-stoiltanne
allative
-stollenne
-stoillenne
essive
-stonanne
-stoinanne
translative
-stoksenne
-stoiksenne
abessive
-stottanne
-stoittanne
instructive
—
—
comitative
—
-stoinenne
third-person possessor
singular
plural
nominative
-stonsa
-stonsa
accusative
nom.
-stonsa
-stonsa
gen.
-stonsa
genitive
-stonsa
-stojensa
partitive
-stoaan -stoansa
-stojaan -stojansa
inessive
-stossaan -stossansa
-stoissaan -stoissansa
elative
-stostaan -stostansa
-stoistaan -stoistansa
illative
-stoonsa
-stoihinsa
adessive
-stollaan -stollansa
-stoillaan -stoillansa
ablative
-stoltaan -stoltansa
-stoiltaan -stoiltansa
allative
-stolleen -stollensa
-stoilleen -stoillensa
essive
-stonaan -stonansa
-stoinaan -stoinansa
translative
-stokseen -stoksensa
-stoikseen -stoiksensa
abessive
-stottaan -stottansa
-stoittaan -stoittansa
instructive
—
—
comitative
—
-stoineen -stoinensa
Inflection of -sto (Kotus type 2/palvelu
nominative
-sto -stot
genitive
-ston
-stojen -stoiden -stoitten
partitive
-stoa
-stoja -stoita
illative
-stoon
-stoihin
singular
plural
nominative
-sto -stot
accusative
nom.
-sto -stot
gen.
-ston
genitive
-ston
-stojen -stoiden -stoitten
partitive
-stoa
-stoja -stoita
inessive
-stossa
-stoissa
elative
-stosta
-stoista
illative
-stoon
-stoihin
adessive
-stolla
-stoilla
ablative
-stolta
-stoilta
allative
-stolle
-stoille
essive
-stona
-stoina
translative
-stoksi
-stoiksi
abessive
-stotta
-stoitta
instructive
—
-stoin
comitative
See the possessive forms below.
first-person singular possessor
singular
plural
nominative
-stoni
-stoni
accusative
nom.
-stoni
-stoni
gen.
-stoni
genitive
-stoni
-stojeni -stoideni -stoitteni
partitive
-stoani
-stojani -stoitani
inessive
-stossani
-stoissani
elative
-stostani
-stoistani
illative
-stooni
-stoihini
adessive
-stollani
-stoillani
ablative
-stoltani
-stoiltani
allative
-stolleni
-stoilleni
essive
-stonani
-stoinani
translative
-stokseni
-stoikseni
abessive
-stottani
-stoittani
instructive
—
—
comitative
—
-stoineni
second-person singular possessor
singular
plural
nominative
-stosi
-stosi
accusative
nom.
-stosi
-stosi
gen.
-stosi
genitive
-stosi
-stojesi -stoidesi -stoittesi
partitive
-stoasi
-stojasi -stoitasi
inessive
-stossasi
-stoissasi
elative
-stostasi
-stoistasi
illative
-stoosi
-stoihisi
adessive
-stollasi
-stoillasi
ablative
-stoltasi
-stoiltasi
allative
-stollesi
-stoillesi
essive
-stonasi
-stoinasi
translative
-stoksesi
-stoiksesi
abessive
-stottasi
-stoittasi
instructive
—
—
comitative
—
-stoinesi
first-person plural possessor
singular
plural
nominative
-stomme
-stomme
accusative
nom.
-stomme
-stomme
gen.
-stomme
genitive
-stomme
-stojemme -stoidemme -stoittemme
partitive
-stoamme
-stojamme -stoitamme
inessive
-stossamme
-stoissamme
elative
-stostamme
-stoistamme
illative
-stoomme
-stoihimme
adessive
-stollamme
-stoillamme
ablative
-stoltamme
-stoiltamme
allative
-stollemme
-stoillemme
essive
-stonamme
-stoinamme
translative
-stoksemme
-stoiksemme
abessive
-stottamme
-stoittamme
instructive
—
—
comitative
—
-stoinemme
second-person plural possessor
singular
plural
nominative
-stonne
-stonne
accusative
nom.
-stonne
-stonne
gen.
-stonne
genitive
-stonne
-stojenne -stoidenne -stoittenne
partitive
-stoanne
-stojanne -stoitanne
inessive
-stossanne
-stoissanne
elative
-stostanne
-stoistanne
illative
-stoonne
-stoihinne
adessive
-stollanne
-stoillanne
ablative
-stoltanne
-stoiltanne
allative
-stollenne
-stoillenne
essive
-stonanne
-stoinanne
translative
-stoksenne
-stoiksenne
abessive
-stottanne
-stoittanne
instructive
—
—
comitative
—
-stoinenne
third-person possessor
singular
plural
nominative
-stonsa
-stonsa
accusative
nom.
-stonsa
-stonsa
gen.
-stonsa
genitive
-stonsa
-stojensa -stoidensa -stoittensa
partitive
-stoaan -stoansa
-stojaan -stoitaan -stojansa -stoitansa
inessive
-stossaan -stossansa
-stoissaan -stoissansa
elative
-stostaan -stostansa
-stoistaan -stoistansa
illative
-stoonsa
-stoihinsa
adessive
-stollaan -stollansa
-stoillaan -stoillansa
ablative
-stoltaan -stoltansa
-stoiltaan -stoiltansa
allative
-stolleen -stollensa
-stoilleen -stoillensa
essive
-stonaan -stonansa
-stoinaan -stoinansa
translative
-stokseen -stoksensa
-stoikseen -stoiksensa
abessive
-stottaan -stottansa
-stoittaan -stoittansa
instructive
—
—
comitative
—
-stoineen -stoinensa
Akin to Finnish -sto
-sto (front vowel variant -stö
Used to form collective nouns . noori ( “ young ” ) + -sto → nooristo ( “ youth ” )
singular
plural
nominative
-sto -ssot
genitive
-sson -stoin -stoloin
partitive
-stoa -stoja -stoloja
illative
-stoo -stoi -stoloihe
inessive
-ssos -ssois -stolois
elative
-ssost -ssoist -stoloist
allative
-ssolle -ssoille -stoloille
adessive
-ssol -ssoil -stoloil
ablative
-ssolt -ssoilt -stoloilt
translative
-ssoks -ssoiks -stoloiks
essive
-stonna -stoon -stoinna -stoloinna -stoin -stoloin
exessive1)
-stont -stoint -stoloint
1) obsolete *) the accusative corresponds with either the genitive (sg nominative (pl **) the comitative is formed by adding the suffix -ka ? -kä ? genitive .