Ratchet

来自Big Physics

google

ref

mid 17th century: from French rochet, originally denoting a blunt lance head, later in the sense ‘bobbin, ratchet’; related to the base of archaic rock ‘quantity of wool on a distaff for spinning’.


Ety img ratchet.png

wiktionary

ref

From French rochet(“bobbin, spindle, ratchet”), from Italian rocchetto(“spool, ratchet”).

Possibly a variant (representing a Southern or specifically Louisianan pronunciation) of wretched.


etymonline

ref

ratchet (n.)

"pivoted piece designed to fit into the teeth of a ratchet-wheel, permitting the wheel to rotate in one direction but not in the other," 1650s, rochet, from French rochet "bobbin, spindle," from Italian rocchetto "spool, ratchet," diminutive of rocca "distaff," possibly from a Germanic source (compare Old High German rocko "distaff," Old Norse rokkr), from Proto-Germanic *rukka-, from PIE root *ruk- "fabric, spun yarn." Compare rocket (n.2). The current spelling in English dates from 1721, influenced by synonymous ratch, which perhaps is borrowed from German Rätsche "ratchet."




ratchet (v.)

1852, "move by means of a ratchet," from ratchet (n.). Transferred sense "cause something (immaterial) to move (up or down) in jerky increments, as if by ratchet" is attested by 1977. Related: Ratcheted; ratcheting.