WHILOM
Etymology
Adverb
whilom (not comparable)
(obsolete) While.
(dated) Once upon a time, formerly.
Synonyms
• (while)
• (formerly): beforehand, erenow; see also formerly
Adjective
whilom (not comparable)
(now literary) Former, sometime.
Synonyms
• (former): erstwhile, former, late, quondam, sometime; see also former
Conjunction
whilom
(now literary) While.
Synonyms
• See also while
Source: Wiktionary
Whi"lom, adv. Etym: [AS. hwilum, properly, at times, dative pl. of
hwil; akin to G. weiland formerly, OHG. hwilm, See While, n.]
Definition: Formerly; once; of old; erewhile; at times. [Obs. or Poetic]
Spenser.
Whilom, as olde stories tellen us, There was a duke that highte
Theseus. Chaucer.
Source: Webster’s Unabridged Dictionary 1913 Edition