POSSESS'IVE, adjective [Latin possessivus.] Pertaining to possession; having possession. Possessive case, in English grammar, is the genitive case, or case of nouns and pronouns, which expresses, 1st, possession, ownership, as John's book; or 2dly, some relation of one thing to another, as Homer's admirers.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI