Where does “forthinken” come from?

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

Ancestry of “forthinken”, step by step

StepLanguageWordMeaning
1Old Englishþyncanto seem
2Proto-Germanicþunkijanąto seem, to appear

Words derived from “forthinken

Every word from Proto-Germanic þunkijanąEvery word from Old English þyncan