late 14c., "full of twists and turns," from Anglo-French tortuous (12c.), Old French tortuos, from Latin tortuosus "full of twists, winding," from tortus "a twisting, winding," from stem of torquere "to twist, wring, distort" (from PIE root *terkw- "to twist"). Related: Tortuously; tortuousness.
Cambodian capital, literally "mountain of plenty," from Cambodian phnom "mountain, hill" + penh "full."
1530s, "to satisfy, satiate, fill full" (senses now obsolete), from Latin saturatus, past participle of saturare "to fill full, sate, drench," from satur "sated, full" (from PIE root *sa- "to satisfy").
In chemistry, the meaning "to impregnate or unite with until no more can be received" is from 1680s; the general sense of "soak thoroughly, imbue (with)" is by 1756. The commercial sense of "oversupply" (a market, with a product) is by 1958. As a noun, "a saturated fat," by 1959. Related: Saturated; saturating.
late 14c., from Late Latin vaporosus "full of steam," from Latin vaporus, from vapor (see vapor).
1727, from Latin tumulosus "full of hills," from tumulus "hill, mound, heap of earth" (see tumulus).