Where does “could” come from?

Could derives from Middle English coude, from Old English cudu, from Old English codd, from Proto-Indo-European gʷet-, ultimately from Latin cubare meaning to lie down.

could (English): simple past tense of can; conditional of can;...

Definitions

  1. simple past tense of can; conditional of can;...

Ancestry of “could”, step by step

could traces back through two separate lines of ancestry.

via English ICH

StepLanguageWordMeaning
1EnglishICHInitialism of intracranial hemorrhage; Initialism...
2EnglishichthyophthiriasisA parasitic infection of freshwater fish caused...
3EnglishIchthyophthirius
4Ancient Greekἰχθύςfish
5Ancient Greekἀετόςeagle; the constellation Aquila; omen
6Proto-Hellenicayyetós
7Proto-Indo-Europeanh₂ewyetós
8Proto-Indo-Europeanh₂éwisbird

via Middle English coude

StepLanguageWordMeaning
1Middle EnglishcoudeAlternative form of code
2Old Englishcūþeclearly
3Old Englishcunnanto know, to be familiar with; can, to know how
4Proto-West Germanickunnanto recognise; to know how, to be able
5Proto-Germanickunnanąto know, to be familiar with, to recognise; to...
6Proto-Indo-Europeanǵneh₃-to know

Words derived from “could

Every word from Proto-Indo-European h₂éwis