"one whose business is the decoration of dwellings or public edifices," 1700, agent noun in Latin form from decorate.

late 15c., from Latin interior "inner, interior, middle," comparative adjective of inter "within" (from PIE *enter "between, among," comparative of root *en "in"). Specific meaning "away from the coast, of the interior parts of a country" is from 1777. Interior decoration first attested 1769; interior decorator is from 1830. Interior design from 1927.

"part of a country distant from the coast," 1796, from interior (adj.); meaning "internal part, inside" is from 1828. Meaning "internal affairs of a country or state" (as in U.S. Department of the Interior) is from 1826. The Latin adjective also was used as a noun.

1701, from interior + -ity.

"interior regions" of a land, 1560s, from in (prep.) + country.

"within the hull or interior of a ship," 1830, from in (adv.) + board (n.2).

"interior regions," 1680s, from up- + country (n.). As an adjective from 1810; as an adverb from 1864.

capital of Oman, from Arabic Masqat, said to mean "hidden" (it is isolated from the interior by hills).

"upholsterer's work, furniture covered with textile materials, interior fittings made from textiles," 1640s; see upholster + -y (4).

"inflammation of the interior of the mouth," 1859, from Greek stomato- (before vowels stomat-), combining form from stem of stoma "mouth" (see stoma) + -itis "inflammation."