Where does “left coast” come from?

left coast (English) comes from English left, from Middle English left, from Middle English laft, from Old English læfd, from Old English lǣfan, from Frankish laibijan, from Proto-Germanic laibijaną, from Proto-Germanic lībaną — to leave, let; to want, desire; to let; leave...

left coast (English): The West Coast of the United States

Definitions

  1. The West Coast of the United States

Ancestry of “left coast”, step by step

left coast traces back through two separate lines of ancestry.

via English left

StepLanguageWordMeaning
1EnglishleftThe opposite of right; toward the west when one...
2Middle Englishleft
3Middle Englishlaftpast participle of leave
4Old Englishlæfd
5Old Englishlǣfanto leave
6Frankishlaibijanto leave; to leave behind
7Proto-Germaniclaibijanąto leave behind, to leave remaining
8Proto-Germaniclībanąto remain, to be left
9Proto-Indo-Europeanleyp-to stick; fat or sticky substance
10Proto-Indo-Europeanlēy-to leave, let; to want, desire; to let; leave...

via English coast

StepLanguageWordMeaning
1EnglishcoastThe edge of the land where it meets an ocean,...
2Middle Englishcoste
3Old Frenchcostéside
4Latincostātusribbed
5Latincostaa rib; a side, a wall
6Proto-Indo-Europeankost-
Every word from Proto-Indo-European lēy-Every word from Proto-Indo-European leyp-Every word from Proto-Germanic lībaną