Etymology in the sources
Source-reportedFrom Old Swedish Olaff (compare Swedish Olaf), with a long initial vowel adapted into Finnish as uo- (sometimes also uu-). From the same origin as, and now considered a variant of, Olavi (“Olaf”).
Sources for this account (4)
- Wiktionary: UoleviCC-BY-SA-4.0 · retrieved 2026-10-15
- Greek Wiktionary: UoleviCC-BY-SA-4.0 · retrieved 2026-10-15
- Polish Wiktionary: UoleviCC-BY-SA-4.0 · retrieved 2026-10-14
- Russian Wiktionary: UoleviCC-BY-SA-4.0 · retrieved 2026-10-14

