infirm
in·firm
adjective
2.
Origin
* The noun is from Middle English infirme, from Latin infirmus (“weak, feeble”). * The verb is from Latin īnfirmāre, from īnfirmus (“sick, weak, infirm”) + -ō.
Related words
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.