perpendicular的词源
英文词源
- perpendicular




- perpendicular: see pendulum
- perpendicular (adj.)




- late 15c., from adverb (late 14c.), from Old French perpendiculer, from Latin perpendicularis "vertical, as a plumb line," from perpendiculum "plumb line," from perpendere "balance carefully," from per- "thoroughly" (see per) + pendere "to weigh, to hang" (see pendant). As a noun from 1570s. Related: Perpendicularly; perpendicularity.
中文词源
词根词缀: per-贯穿,通过 + -pend-垂 + -icular形容词词尾
该词的英语词源请访问趣词词源英文版:perpendicular 词源,perpendicular 含义。
per-,整个的,-pend,悬挂,词源同depend,pendulum.引申词义垂直的。