Definition of whilom

< whiles

whilst >

whi·lom    (hwlm, w-) KEY 

ADJECTIVE:

Having once been; former: the whilom editor in chief.

ADVERB:
Archaic

At a past time; formerly.

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ETYMOLOGY:
Middle English, at times, from Old English hwlum, dative pl. of hwl, time, while; see k^wei- in Indo-European roots