Where does “leth-aon” come from?

leth-aon (Scottish Gaelic) comes from Scottish Gaelic leth, from Old Irish leth, from Proto-Celtic letos, from Old Czech léto, from Proto-Slavic lěto, from Proto-Indo-European leh₁tóm.

leth-aon (Scottish Gaelic): twin

Definitions

  1. twin

Ancestry of “leth-aon”, step by step

leth-aon traces back through two separate lines of ancestry.

via Scottish Gaelic leth

StepLanguageWordMeaning
1Scottish Gaeliclethhalf
2Old Irishlethhalf; direction; side
3Proto-Celticletosside
4Old Czechlétosummer
5Proto-Slaviclětosummer; year
6Proto-Indo-Europeanleh₁tóm—

via Scottish Gaelic aon

StepLanguageWordMeaning
1Scottish Gaelicaonone; any; same
2Old Irishóenone
3Proto-Celticoinosone
4Proto-Indo-Europeanóynosone; single
Every word from Proto-Indo-European leh₁tóm →Every word from Proto-Slavic lěto →Every word from Old Czech léto →