What does adjective mean?
The definition of adjective
Ad”jec*tive, a.
Etym: [See Adjective, n.]

1 Added to a substantive as an attribute; of the nature of an adjunct; as, an word sentence.
2 Not standing by itself; dependent. Adjective color, a color which requires to be fixed by some mordant or base to give it permanency.
3 Relating to procedure. “The whole English law, substantive and adjective.” Macaulay.

Ad”jec*tive, n.
Etym: [L. adjectivum (sc. nomen), neut. of adjectivus that is added, fr. adjicere: cf. F. adjectif. See Adject.]

1 (Gram.)
A word used with a noun, or substantive, to express a quality of the thing named, or something attributed to it, or to limit or define it, or to specify or describe a thing, as distinct from something else. Thus, in phrase, “a wise ruler,” wise is the adjective, expressing a property of ruler.
2 A dependent; an accessory. Fuller.

Ad”jec*tive, v. t.
[imp. & p. p. Adjectived; p. pr. & vb. n. Adjectiving.]

To make an adjective of; to form or change into an adjective. [R.] Language has as much occasion to adjective the distinct signification of the verb, and to adjective also the mood, as it has to adjective time. It has . . . adjectived all three. Tooke.