| 词汇 | ratchet |
| 词根词缀 | 词源： ratchet (n.) 1659, from Fr. rochet "bobbin, spindle," from It. rocchetto "spool, ratchet," dim. of rocca "distaff," possibly from a Gmc. source (cf. O.H.G. rocko "distaff," O.N. rokkr), from P.Gmc. *rukka-, from PIE base *rug- "to spin." Cf. rocket (2). Spelling in Eng. influenced by Ger. Rätsche "ratchet." The verb is first recorded 1881; transf. sense is from 1977. |
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