unlock
v.
c.1400, from un-(2) "reverse, opposite of" + lock, v.. Figurative sense is attested from 1530s. Old English had unlucan "to unlock, open." Related: Unlocked; unlocking.
| 词汇 | unlock |
| 词根词缀 | Online Etymology Dictionary unlock v. c.1400, from un-(2) "reverse, opposite of" + lock, v.. Figurative sense is attested from 1530s. Old English had unlucan "to unlock, open." Related: Unlocked; unlocking. |
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