Meaning

noun (usually plural) work clothing consisting of denim trousers (usually with a bib and shoulder straps)

noun a loose protective coverall or smock worn over ordinary clothing for dirty work

adjective involving only main features

originFrom Middle English overall, overal, from Old English ofer eall, ofer ealle (“over all”), equivalent to over + all. Compare Saterland Frisian oural, uural (“everywhere”), West Frisian oeral (“everywhere”), Dutch overal (“everywhere”), German Low German overall, överall (“everywhere; all over”), German überall (“all over; everywhere”), Danish overalt (“everywhere”), Swedish överallt (“everywhere;…

Etymology from Wiktionary, CC BY-SA 3.0