Where does “ondankbaar” come from?

ondankbaar (Dutch) comes from Dutch dankbaar, from Middle Dutch dancbaer.

ondankbaar (Dutch): ungrateful, showing no gratitude; thankless,...

Definitions

  1. ungrateful, showing no gratitude; thankless,...

Ancestry of “ondankbaar”, step by step

ondankbaar traces back through two separate lines of ancestry.

via Dutch dankbaar

StepLanguageWordMeaning
1Dutchdankbaarthankful, grateful; gratifying, rewarding
2Middle Dutchdancbaer

via Dutch on

StepLanguageWordMeaning
1Dutchonrarely used as shorthand for oneven (odd), the prefix on- means not (corresponds to English un-)
Every word from Middle Dutch dancbaerEvery word from Dutch dankbaar