linguistic adj.

1580s, "a master of languages;" also "one who uses his tongue freely," a hybrid from Latin lingua "language, tongue" (from PIE root *dnghu- "tongue") + -ist. Meaning "a student of language" first attested 1640s. Compare French linguiste, Spanish linguista. English in 17c. had an adjective linguacious "talkative" (1650s). Linguister (1640s) was the old name in early colonial New England for an interpreter between Europeans and Indians (Lowell used it in a sense "dabbler in philology, linguist"). Linguistician is attested from 1895.

Middle English -ik, -ick, word-forming element making adjectives, "having to do with, having the nature of, being, made of, caused by, similar to," from French -ique and directly from Latin -icus or from cognate Greek -ikos "in the manner of; pertaining to." From PIE adjective suffix *-(i)ko, which also yielded Slavic -isku, adjectival suffix indicating origin, the source of the -sky (Russian -skii) in many surnames. In chemistry, indicating a higher valence than names in -ous (first in benzoic, 1791).

In Middle English and after often spelled -ick, -ike, -ique. Variant forms in -ick (critick, ethick) were common in early Modern English and survived in English dictionaries into early 19c. This spelling was supported by Johnson but opposed by Webster, who prevailed.

"the science of languages," 1847; see linguistic; also see -ics. Also known as comparative philology (1822). An earlier word for it was linguistry (1794); logonomy (1803) also was tried.