impair
Concise Oxford English Dictionary © 2008 Oxford University Press:
impair/ɪmˈpeə(r)/
▶verb weaken or damage.
– derivatives
impairment noun.
impairment noun.
– origin ME enpeire, from OFr. empeirier, based on late L. pejorare (from L. pejor ‘worse’).
'impair' also found in these Oxford entries:
