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Classic usage
Reading level: hard
Estimated CEFR level: C2 — Proficiency
Estimated from word frequency; not an official CEFR classification.
From Middle English loke, from Old English loca (“a bar, bolt; enclosure, stronghold”), from Proto-Germanic *lukô, *lukǭ (“lock, clasp, shutter, opening”), from Proto-Indo-European *lewg- (“to bend, turn”). Cognate with Icelandic loka (“clasp, latch, lock, bolt”). More at lock.
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tap / space
Classic usage
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