ydelly

• ideliche, idelle, idelliche, idely, idili, ydeliche, ydelleche, ydelliche, ydely, ydilly, ydullich

From Old English īdellīċe; equivalent to ydel +‎ -ly (adverbial).

• IPA^(key): /ˈiːdəliː/, /ˈiːdəlit͡ʃ(ə)/

ydelly

1. uselessly, pointlessly
2. idly, inactively
3. (rare) wrongly, erroneously

• English: idly

• “īdellī, adv.”, in MED Online, Ann Arbor, Mich.: University of Michigan, 2007.