English
irreptitiously
From irreptitious + -ly.
Formed from irreptitious + -ly
Proto-Indo-European *h₁reh₁p- ‘to take away, snatch’
Proto-Italic *rēpō
Latin rēpō ‘to creep, crawl’
Latin irrēpō ‘I creep into’
English irreptitious
Today it means
adv In an irreptitious manner.
Language periods are conventional ranges, not dates for this word.
Etymograph / irreptitiously