Where does “regretteth” come from?

regretteth (English) comes from English regret, from Middle English regretten, from Old French regreter, from Old French re-, from Latin rĕ-, from Latin prōdūcō, from Latin prō-, from Proto-Italic *pro- — passed , crossed.

regretteth (English): third-person singular simple present indicative...

Definitions

  1. third-person singular simple present indicative...

Ancestry of “regretteth”, step by step

regretteth traces back through two separate lines of ancestry.

via English regret

StepLanguageWordMeaning
1EnglishregretTo feel sorry about (a thing that has or has not happened), afterthink: to wish that a thing had not happened, that something else had happened instead
2Middle Englishregretten
3Old Frenchregreterto regret; to bewail; to lament
4Old Frenchre-re- again; once more
5Latinrĕ-back, backwards
6Latinprōdūcōto lead or bring forth, forward or out
7Latinprō-forward direction, forward movement
8Proto-Italic*pro-pro- see the Latin entry for further meanings
9Proto-Indo-Europeanpro-toward, forward
10Proto-Indo-Europeanpor-to give birth; forward, through; going, passage
11Proto-Indo-Europeanper-before, in front; first; to go through
12Proto-Indo-Europeanpr̥tóspassed , crossed

via English eth

StepLanguageWordMeaning
1EnglishethA letter introduced into Old English to...
Every word from Proto-Indo-European pr̥tósEvery word from Proto-Indo-European per-Every word from Latin rĕ-