Freely
wiktionary
From Middle English frely, freelich, from Old English frēolīc(“free, freeborn, glorious, stately, magnificent, noble, beautiful, charming”), equivalent to free + -ly. Compare Middle Low German vrilik, vrigelik(“free”), Middle High German vrīlich(“free”).
From Middle English frely, freliche, from Old English frēolīċe(“freely, readily, as a festival”), equivalent to free + -ly. Compare Dutch vrijelijk(“freely”), German freilich(“certainly, of course”).
etymonline
freely (adv.)
Middle English frely, from Old English freolice "of one's own accord, readily;" see free (adj.) + -ly (2). Meaning "unstintedly; plentifully" is from c. 1300; that of "without constraint, under free conditions" is from 1590s. Similar formation in Middle Low German vrilike, Dutch vrijelijk "freely," German freilich "to be sure."
