subterraneus

Latin

Derived from sub- +‎ terra (“earth, ground”) +‎ -āneus.

(Classical Latin) IPA^(key): /sub.terˈraː.ne.us/, [s̠ʊpt̪ɛrˈräːneʊs̠]
(modern Italianate Ecclesiastical) IPA^(key): /sub.terˈra.ne.us/, [subt̪erˈräːneus]

subterrāneus (feminine subterrānea, neuter subterrāneum); first/second-declension adjective

	masculine	feminine	neuter	masculine	feminine	neuter
	singular			plural
nominative	subterrāneus	subterrānea	subterrāneum	subterrāneī	subterrāneae	subterrānea
genitive	subterrāneī	subterrāneae	subterrāneī	subterrāneōrum	subterrāneārum	subterrāneōrum
dative	subterrāneō	subterrāneae	subterrāneō	subterrāneīs
accusative	subterrāneum	subterrāneam	subterrāneum	subterrāneōs	subterrāneās	subterrānea
ablative	subterrāneō	subterrāneā	subterrāneō	subterrāneīs
vocative	subterrānee	subterrānea	subterrāneum	subterrāneī	subterrāneae	subterrānea

Italo-Romance:
- Italian: sotterraneo
- Sicilian: suttirràniu
Padanian:
- Piedmontese: soterani
Northern Gallo-Romance:
- Franco-Provençal: sotèrren
- French: souterrain
Southern Gallo-Romance:
- Aragonese: sotarrano, sotarraño, soterrano, sotorrano
- Catalan: soterrani
- Occitan: sosterranh
  Gascon: sosterran
Borrowings:
- → Catalan: subterrani
- → English: subterranean
- → Galician: subterráneo
- → Portuguese: subterrâneo
- → Romanian: subteran
- → Spanish: subterráneo

“subterraneus”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
“subterraneus”, in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
subterraneus in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette.