speedily
/ˈspiːdɪli/ adverb
Forms speedilier speediliest
Synonyms
Etymology
From Middle English spedily, spedili, from Old English *spēdiġlīċe, ġespēdiġlīċe (“prosperously”), equivalent to speedy + -ly. Cognate with Scots spedely, spedelie (“quickly, speedily”). Compare also Old English spēdlīċe (“effectually, effectively, successfully, efficaciously, powerfully, in a manner which produces a result”).
Webster’s 1913
Sources: Wiktionary · WordNet 3.0 · Webster’s 1913 — from the Wiktionary entry “speedily”, CC BY-SA 4.0. Details