Where does “koinā” come from?

koinā (Proto-Italic) comes from Proto-Indo-European ḱoy-no-, from Proto-Indo-European ḱey- — to be lying down; to settle.

Ancestry of “koinā”, step by step

koinā traces back through two separate lines of ancestry.

via Proto-Indo-European ḱoy-no-

StepLanguageWordMeaning
1Proto-Indo-Europeanḱoy-no-hay; lair, cradle
2Proto-Indo-Europeanḱey-to be lying down; to settle

via Proto-Indo-European ḱoyneh₂

StepLanguageWordMeaning
1Proto-Indo-Europeanḱoyneh₂

Words derived from “koinā

Every word from Proto-Indo-European ḱey-Every word from Proto-Indo-European ḱoy-no-