Etymology
1. Etymology tree
2. Proto-Indo-European *lewg-der.
3. Proto-Germanic *luką
4. Proto-West Germanic *lok
5. Old English loc
6. Middle English lok
7. English lock
8. From Middle English lok, from Old English loc, from Proto-West Germanic *lok, from Proto-Germanic *luką from Proto-Indo-European *lewg- (“to bend; turn”).
9. Cognate with Cimbrian loch, lòch (“hole”), Dutch lok (“hole”), German Loch (“hole”), German Low German Lock (“hole”), Luxembourgish Lach (“hole”), Vilamovian łöch (“hole”), Yiddish לאָך (lokh, “hole”), Danish låg (“lid, cover”), Norwegian Bokmål lokk (“lid, cover”), Norwegian Nynorsk lok, lokk (“lid, cover”).
10. more detail
11. The verb is from Middle English locken, lokken, louken, from Old English lūcan, Proto-West Germanic *lūkan, from Proto-Germanic *lūkaną. Cognate with Dutch luiken (“to close, to shut”), Danish, Norwegian Bokmål lukke (“to close, to shut”), Faroese lúka (“to end, to finish”), Icelandic ljúka (“to close, to shut”), Norwegian Nynorsk lukka (“to close, to shut”). Related to luxe via Latin. See: Middle English Nouns '
lok', Old English Nouns '
loc', Dutch Nouns '
lok', German Nouns '
Loch', Danish Nouns '
låg', Norwegian Bokmål Nouns '
lokk', Norwegian Nynorsk Nouns '
lok', Old English Nouns '
lūcan', Faroese Nouns '
lúka', Icelandic Nouns '
ljúka'.
Verbs referencing "lock"
English Nouns
luxe, Danish Nouns
låg, Old Norse Nouns
lykkja, German Nouns
Locke, Finnish Nouns
lukko, Swedish Nouns
nyckel, Swedish Nouns
lycka, French Nouns
loque, Swedish Nouns
lucka.