Where does “yieldful” come from?

yieldful (English) comes from English yield, from Middle English yielden, from Old English ġieldan, from Proto-Germanic geldaną, from Proto-Indo-European gʰeldʰ- — to repay, reward; to pay; to pay for, repay.

Ancestry of “yieldful”, step by step

yieldful traces back through two separate lines of ancestry.

via English yield

StepLanguageWordMeaning
1EnglishyieldTo pay, give in payment; repay, recompense;...
2Middle Englishyielden
3Old Englishġieldanto pay; to yield, pay, pay for, reward, requite,...
4Proto-Germanicgeldanąto pay; to have/give value
5Proto-Indo-Europeangʰeldʰ-to repay, reward; to pay; to pay for, repay

via English ful

StepLanguageWordMeaning
1Englishful
Every word from Proto-Indo-European gʰeldʰ-Every word from Proto-Germanic geldanąEvery word from Old English ġieldan