Where does “leas-mhac” come from?

leas-mhac (Scottish Gaelic) comes from Scottish Gaelic mac, from Middle Irish mac, from Old Irish macc, from Primitive Irish ᚋᚐᚊᚊᚔ, from Proto-Celtic makkʷos, from Proto-Indo-European meh₂ḱ- — to raise, increase; long.

leas-mhac (Scottish Gaelic): stepson

Definitions

  1. stepson

Ancestry of “leas-mhac”, step by step

leas-mhac traces back through two separate lines of ancestry.

via Scottish Gaelic mac

StepLanguageWordMeaning
1Scottish Gaelicmacson; Commonly used as a prefix of Irish and...
2Middle Irishmacson
3Old Irishmaccson; child
4Primitive IrishᚋᚐᚊᚊᚔAlternative form of ᚋᚐᚊᚔ
5Proto-Celticmakkʷos—
6Proto-Indo-Europeanmeh₂ḱ-to raise, increase; long

via Scottish Gaelic leas

StepLanguageWordMeaning
1Scottish Gaelicleasbenefit, advantage
2Old Irishlessbenefit, profit
3Proto-Celtic*lexstusbenefit, advantage
4Proto-Indo-Europeanh₂lek-to protect
Every word from Proto-Indo-European meh₂ḱ- →Every word from Proto-Celtic makkʷos →Every word from Primitive Irish ᚋᚐᚊᚊᚔ →