mac.
son
Meaning & usage
son
A common prefix of many Irish and Scottish names, signifying "son of".
Dónall óg donn Mac Lochlainn
Where this word comes from
From Middle Irish mac, from Old Irish macc, from Primitive Irish ᚋᚐᚊᚊᚔ (maqqi, genitive), from Proto-Celtic *makkʷos, a variant of *makʷos (“son”) (compare Welsh mab, Gaulish mapos, Maponos).
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.