tosi

From Proto-Finnic *toci (compare Estonian tõsi), from Proto-Uralic *čoďe (compare Eastern Khanty [script needed] (čăjǝ), Northern Mansi [script needed] (sōĺ)).

• IPA^(key): /ˈtosi/, [ˈt̪o̞s̠i]
• Rhymes: -osi
• Hyphenation^(key): to‧si

tosi (comparative todempi, superlative tosin)

1. true
2. (in compounds) real, serious, real-life

   tositarina ― real-life story

• (true): When used predicatively, the adjective is always either in the partitive singular, or somewhat less commonly in the nominative singular:

  Tämä on totta! / Tämä on tosi!

  This is true! / I mean it/business!

• (real, serious): Used as an attribute or as a modifier in a compound term.

  ryhtyä tositoimiin ― to take serious action

  tosiasia ― fact

• The comparative form is uncommon and the superlative form is rare.
• Outside of more formal and technical language (e.g. in logic), in everyday speech, all other forms than the nominative and partitive singular are uncommon, outside of their use as adverbs:
  • näyttää toteen (“to prove”)
  • olla totta (“to be true”)
  • ottaa todesta (“to take seriously; to take for granted”)
  • todella (“really, very”)
  • toden teolla (“really”)
  • toden totta (“indeed, sure enough”)
  • toden tullen (“if push comes to shove, if things really get tough”)
  • tosiaan (“indeed, really”)
  • tosin (“granted, although, (given that) it is true that”)

    Hän on tosin viisaampi. ― True, s/he is wiser.

  • tosissaan (“serious(ly)”)

See the usage notes.

• (antonym(s) of “true”): epätosi

tosi

1. really, very

   tosi iso ― really big

• erittäin, todella

tosi

1. (usually indeclinable, see usage notes) truth, reality, real thing

If not the subject of the clause, this word is seldom inflected.

• “tosi”, in Kielitoimiston sanakirja [Dictionary of Contemporary Finnish]‎^[1] (in Finnish) (online dictionary, continuously updated), Kotimaisten kielten keskuksen verkkojulkaisuja 35, Helsinki: Kotimaisten kielten tutkimuskeskus (Institute for the Languages of Finland), 2004–, retrieved 2023-07-03

• Isto, isot, osti, soit, soti

From Proto-Finnic *toci. Cognates include Finnish tosi and Estonian tõsi.

• (Ala-Laukaa) IPA^(key): /ˈtosi/, [ˈto̞s̠i]
• (Soikkola) IPA^(key): /ˈtosi/, [ˈto̞ʒ̥i]
• Rhymes: -osi
• Hyphenation: to‧si

tosi

1. truth

tosi (comparative toemp)

1. true

Declension of tosi (type 5/vesi, t- gradation)
	singular	plural
nominative	tosi	toet
genitive	toen	tossiin, tosiloin
partitive	totta	tossia, tosiloja
illative	tottee	tossii, tosiloihe
inessive	toes	tosis, tosilois
elative	toest	tosist, tosiloist
allative	toelle	tosille, tosiloille
adessive	toel	tosil, tosiloil
ablative	toelt	tosilt, tosiloilt
translative	toeks	tosiks, tosiloiks
essive	totteenna, totteen	tossiinna, tosiloinna, tossiin, tosiloin
exessive1)	tottent	tossint, tosiloint
1) obsolete *) the accusative corresponds with either the genitive (sg) or nominative (pl) **) the comitative is formed by adding the suffix -ka? or -kä? to the genitive.

• Ruben E. Nirvi (1971) Inkeroismurteiden Sanakirja, Helsinki: Suomalais-Ugrilainen Seura, page 593

tosi

1. inflection of tosare:
   1. second-person singular present indicative
   2. first/second/third-person singular present subjunctive
   3. third-person singular imperative

• Isto, isto-, osti, sito, sito-