köken: Reborrowed from Arabic قَبَاء (qabāʔ), from Middle Persian [script needed] (kpʾh /kabāh/, “garment, cloak”). Ultimately from Proto-Indo-European *(s)kep- (“to split, cut”). Cognate to Central Kurdish کەوا (kewa, “long garment open in front”) and Khotanese [script needed] (khapa, “dress”). Perhaps cognate with Latin cappa (“cape”).
hi, hello · An expression of intensity (in some expressions); hey · A filler, in some expressions; hey
köken: Derived from Old Norse hei, likely from Low German hei or German hei, both from Latin hei (“oh! ah!”), of natural exclamatory origin. First attested in 1541.
hi (greeting) · hey (to get someone's attention) · bye (often repeated twice: hei hei)
köken: From Proto-Finnic *hei (compare Estonian hei, Ingrian hei, Karelian hei, Ludian hei, Veps hei). Compare also Old Norse hei (whence Swedish hej) and English hey.