The story
- Old English · derived fromofer eall
- Middle English · inherited fromoverall
- English todayoverall
From 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; overall”).
Etymology from Wiktionary, CC BY-SA 4.0.