Old English timber "building, structure," in late Old English "building material, trees suitable for building," and "trees or woods in general," from Proto-Germanic *tem(b)ra- (source also of Old Saxon timbar "a building, room," Old Frisian timber "wood, building," Old High German zimbar "timber, wooden dwelling, room," Old Norse timbr "timber," German Zimmer "room"), from PIE *deme- "to build," possibly a form of the root *dem- meaning "house, household" (source of Greek domos, Latin domus).
The related Old English verb timbran, timbrian was the chief word for "to build" (compare Dutch timmeren, German zimmern). As a call of warning when a cut tree is about to fall, it is attested from 1912 in Canadian English. Timbers in the nautical slang sense (see shiver (v.2)) is from the specialized meaning "pieces of wood composing the frames of a ship's hull" (1748).
The timber-wolf (1846) of the U.S. West is the gray wolf, not confined to forests but so-called to distinguish it from the prairie-wolf (coyote).
masc. proper name, introduced in England by the Normans, from Old Norse Hrolfr, related to Old High German Hrodulf, literally "wolf of fame" (see Rudolph). Rolfing (1972) as a deep massage technique is named for U.S. physiotherapist Ida P. Rolf (1897-1979), and is attested from 1958 (as Rolf Technique).
African wild cat, 1771, from Modern Latin serval, French serval (Buffon, 1765), from Portuguese (lobo) cerval "lynx," from Latin lupus cervarius (source of French loup cervier) "lynx," literally "wolf that hunts the stag," from cervarius "pertaining to a stag," from cervus "stag," from PIE *ker-wo- "having horns," suffixed form of root *ker- (1) "horn; head."
the Australian dog, of wolf-like appearance and very fierce, 1789, Native Australian name, from Dharruk (language formerly spoken in the area of Sydney) /din-go/ "tame dog," though the English used it to describe wild Australian dogs. Bushmen continue to call the animal by the Dharruk term /warrigal/ "wild dog." Plural dingoes.