Impair
Impair , transitive verb
[Old English empeiren, enpeiren, Old French empeirier, empirier, French empirer, Late Latin impejorare; Latin pref. im- in + pejorare to make worse, from pejor worse. Compare Appair.]
To make worse; to diminish in quantity, value, excellence, or strength; to deteriorate; as, to impair health, character, the mind, value.
Time sensibly all things impairs.
In years he seemed, but not impaired by years.
Impair , transitive verb
To grow worse; to deteriorate. — Milton
Impair , adjective
[French impair uneven, Latin impar; im- not + par equal.]
Not fit or appropriate. [Obsolete]
Impair , noun
Diminution; injury. [Obsolete]