- n. 船舵；飞机方向舵
- n. (Rudder)人名；(德、西)鲁德尔
来自古英语 rothor,舵，来自 Proto-Germanic*rothru,舵，来自*ro,划，划船，词源同 row,-thor, 工具格后缀，词源同 tether,weather.古英语-th-简化为-d-,比较 burden,来自古英语 byrthen.
- rudder: [OE] Rudder comes from the same source as English row ‘use oars’ – prehistoric Germanic *rō- ‘steer’. Indeed it originally denoted an ‘oar used for steering’; the modern application to a fixed steering surface did not emerge until the 14th century. Its west Germanic ancestor *rōthra- also produced German ruder and Dutch roer.
- rudder (n.)
- mid-15c. alteration of Middle English rother, from Old English roðor "paddle, oar," from Proto-Germanic *rothru- (cognates: Old Frisian roðer, Middle Low German roder, Middle Dutch roeder, Dutch roer, Old High German ruodar, German Ruder "oar"), from *ro- "steer" (see row (v.)) + suffix -þra, used to form neutral names of tools.
Meaning "broad, flat piece of wood attached to the stern of a boat and guided by a tiller for use in steering" is from c. 1300. For shift of -th- to -d- compare burden (n.1), murder (n.); simultaneous but opposite to the movement that turned -d- to -th- in father (n.), etc.
- 1. It was not yet clear how the rudder had sheared off.
- 2. Turn the rudder slightly so that we can ease the boat round.
- 3. An oar often acts as rudder.
- 4. There is no rudder as such, so the craft can be steered only when under power.
- 5. A sailor uses the rudder to make the ship go in the correct direction.
[ rudder 造句 ]