actually (adv.)youdaoicibaDictYouDict[actually 词源字典]
early 15c., "in fact, in reality" (as opposed to in possibility), from actual + -ly (2). Meaning "actively, vigorously" is from mid-15c.; that of "at this time, at present" is from 1660s. As an intensive added to a statement and suggesting "as a matter of fact, really, in truth" it is attested from 1762. [actually etymology, actually origin, 英语词源]