тиіс

From *tegiš "due, payable; appropriate", verb stem *tegiš- "to exchange goods", from Proto-Turkic *dẹg- (“touch”).

Immediately cognate with Bashkir тейеш (teyeš, “must”), Tatar тиеш (tiyeş, “must”), Kyrgyz тийиш (tiyiş, “must”), Uyghur تېگىش‎ (tëgish, “must”). Khakas тізіс (tízís) Also compare Karakhanid [script needed] (tegiš, “due, payable to”); Uzbek tegish (“a share payable to smb”), Turkish değiş (“worthiness”), Karachay-Balkar тийишли (“required, appropriate”), Kumyk тийишли (“required, appropriate”), etc.}

тиіс • (tïis) (placed at end of sentence)

1. must