Where does “unthankable” come from?

unthankable (English) comes from English thankable, from English thank, from Middle English thank, from Old English þanc, from Proto-Germanic þankaz, from Proto-Indo-European teng- — to think.

unthankable (English): Not capable of being thanked

Definitions

  1. Not capable of being thanked

Ancestry of “unthankable”, step by step

unthankable traces back through two separate lines of ancestry.

via English thankable

StepLanguageWordMeaning
1EnglishthankableCapable of being thanked
2EnglishthankAn expression of appreciation; a thought; To...
3Middle Englishthank
4Old Englishþancthanks; thought
5Proto-Germanicþankazthought; mind; consideration; remembrance;...
6Proto-Indo-Europeanteng-to think

via English un

StepLanguageWordMeaning
1EnglishunOne
Every word from Proto-Indo-European teng-Every word from Proto-Germanic þankazEvery word from Old English þanc
unthankable — Etymology, Origin & Word History | Etymology Explorer