The story
- Latin · borrowed fromīnfirmāre
- Latin · derived frominfirmus“weak, feeble”
- Middle English · inherited frominfirme
- English todayinfirm
* The noun is from Middle English infirme, from Latin infirmus (“weak, feeble”). * The verb is from Latin īnfirmāre, from īnfirmus (“sick, weak, infirm”) + -ō.
Words from the same roots
Etymology from Wiktionary, CC BY-SA 4.0.