Where does “both” come from?

both (Irish) comes from Old Irish both, from Proto-Celtic butā, from Proto-Indo-European bʰuH- — to become, grow, appear.

both (Irish): Booth, hut

Definitions

  1. Booth, hut

Ancestry of “both”, step by step

StepLanguageWordMeaning
1Old Irishbothpreterite passive conjunct of at·tá
2Proto-Celticbutāhut, cabin
3Proto-Indo-EuropeanbʰuH-to become, grow, appear
Every word from Proto-Indo-European bʰuH- →Every word from Proto-Celtic butā →Every word from Old Irish both →