The adjective is derived from Late Middle English genetif (“pertaining to the genitive case; pertaining to the generation of offspring”) + English -ive (suffix meaning ‘relating or belonging to’ forming adjectives). Genetif is from Anglo-Norman genetif, genitif, and Middle French genetif, genitif (“pertaining to the generation of offspring, procreative; (grammar) pertaining to the genitive case”) (modern French génitif), and from their etymon Latin genetīvus (“pertaining to the generation of offspring; (grammar) pertaining to the genitive case”) (whence Late Latin genitivus), from genitus (“begotten, engendered; produced”) + -īvus (suffix meaning ‘doing’ or ‘related to doing’ forming adjectives). Genitus is the perfect passive participle of gignō (“to beget, give birth to; to produce, yield”), ultimately from Proto-Indo-European *ǵenh₁- (“to beget, give birth; to produce”). Latin genetīvus cāsus (or cāsus genetīvus, cāsus genitīvus (literally “grammatical case pertaining to birth or origin”)), was used to translate Koine Greek γενῐκή πτῶσις (genĭkḗ ptôsis, literally “inflection expressing a genus or kind”) which actually means “generic case”, though it refers to what is now called the genitive case. The noun is derived from Late Middle English genetif (“genitive case”), from the adjective (see above). Compare Middle French genitif (modern French génitif) and Latin genetīvus (short for genetīvus cāsus (“genitive case”)).

progenitive • genitive case • possessive • possessive case • second case