thankworthy

The story

1. Old English · derived fromþancwyrþe
2. Middle English · derived fromthanke worth
3. Middle English · inherited fromthankworthy
4. English todaythankworthy

From Middle English thankworthy, thank-worthy, þankeworþi, probably an alteration (with -y) of earlier Middle English thanke worth, thankworth, þancwurðe (“thankworthy”), from Old English þancwyrþe, þancweorþ (“thankworthy, deserving thanks, acceptable”), equivalent to thank + -worthy. Cognate with German dankwürdig (“worthy of thanks”).