Where does “forthinketh” come from?

forthinketh (English) comes from English forthink, from Middle English forthinken, from Old English þyncan, from Proto-Germanic þunkijaną — to seem, to appear.

forthinketh (English): Third-person singular simple present indicative...

Definitions

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

Ancestry of “forthinketh”, step by step

forthinketh traces back through two separate lines of ancestry.

via English forthink

StepLanguageWordMeaning
1EnglishforthinkTo cause distress or regret to; cause to regret...
2Middle Englishforthinken
3Old Englishþyncanto seem
4Proto-Germanicþunkijanąto seem, to appear

via English eth

StepLanguageWordMeaning
1EnglishethA letter introduced into Old English to...
Every word from Proto-Germanic þunkijanąEvery word from Old English þyncanEvery word from Middle English forthinken