Specifiable comes from specify + -able; specify derives from Old French specifier, from Late Latin specificare, from Latin species ('kind') + facere ('to make'). The historical chain includes Late Latin specificare, Latin species, and Latin facere. Older glosses in the chain include "kind" and "to make", which help explain the semantic range of the modern word. Morphologically, specifiable is best read as compound, suffixal formation, and borrowing, yielding an English adjective shaped by both form history and later usage. In current English it functions as an adjective, with the sense "able to be specified, stated, or precisely identified". related forms include specify, specific, and specification. The result is an English adjective whose etymology preserves the older forms while supporting the word's specialized modern meaning.