rut

英 [rʌt] 美 [rʌt]

1. route => rut.
2. 发情期（发情期动物要吼叫，吸引异性进行交配）: from PIE imitative root *reu-（拟声词根）.
3. *reu-（拟声词根）=》 rut, roar, raucous, rumor, riot.

rut 车辙

可能缩写自法语 route,路，道路，词源同 route.引申词义车辙。

rut 动物发情

来自古法语 rut,噪音，嚎叫声，来自拉丁语 rugire,怒吼，嚎叫，来自 PIE*reu,怒吼，嚎叫，拟声词，词源同 rumor,riot.

rut: rut: The rut of deer [15] and the rut of a wheel [16] are not related. The latter in fact is historically the same word as route. Both go back ultimately to Vulgar Latin *rupta, which was a noun use of the past participle of Latin rumpere ‘break’ (source also of English rout and rupture). The etymological notion underlying it is therefore of a path that has been ‘broken’ by constant use, a ‘beaten track’.

It passed into Old French as rute or rote, and it was this that gave English rut, which originally denoted the ‘track’ made by a wheel. The later French form route is the source of English route [16]. Routine [17] comes from a French derivative of route. Rut ‘oestrus’ comes via Old French rut from Latin rugītus, a derivative of rugīre ‘roar’.
=> rout, rupture
rut (n.1): "narrow track worn or cut in the ground," 1570s, probably from Middle English route (see route (n.)); though OED finds this "improbable." Metaphoric meaning "narrow, monotonous routine; habitual mode of behavior" first attested 1839.
rut (n.2): "annually recurring sexual excitement in animals; animal mating season" (originally of deer), early 15c., from Old French rut, ruit, from Late Latin rutigum (nominative rugitus) "a bellowing," from past participle of Latin rugire "to bellow," from PIE imitative root *reu-. The verb is recorded from early 15c. Related: Rutting.

2. Many home sellers remain stuck in a recessional rut.: 许多房屋的卖主仍然陷在经济衰退的困境中。

3. The car took a lurch forward but grounded in a deep rut.: 车子猛地向前动了一下，但是随后就陷在一条深深的车辙里了。

4. I gave up my job because I felt I was stuck in a rut .: 我放弃了我的工作，因为我觉得那种生活呆板无聊。

5. Pathophysiology and RUT of the other 4 patients with dpm 300 1000 were all negative.: 其余4例dpm300～1000病理组织学与RUT均为阴性.