DictionaryRoot: firmus
Latin
firmus
firm, strong, or stable
Forms
- firmus
- firm- — Used before other endings.
Origin
An inherited Latin strength word whose precise deeper history is uncertain.
Note
Physical stability supplied a model for reliability and steadfastness.
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noun
infirmity
in-FUR-muh-tee/ɪnˈfɜːrməti/
Weakness or ill health of the body or mind.
Etymology
Infirmity names the state of being “not strong.” The underlying lack of strength applies to bodily frailty and also to mental or moral weakness, rather than only to a particular disease.