ist

𒀀𒀸𒋾 /āsti/ *h₁ésti. अस्ति asti ἐστί estí 𐎠𐎿𐎫𐎡𐎹 a-s-t-i-y /astiy/ 𒂊𒌍𒍣 /ēszi/ єстъ estŭ 𐌹𐍃𐍄 est "is(it)"

https://en.wiktionary.org/wiki/Reconstruction:Proto-Indo-European/h%E2%82%81es-

ist c'est esse sein <> heissen ᚺᚨᛁᛏᛖ haite 𐌷𐌰𐌹𐍄𐌰𐌽 haitan, hast and haben have

ἔτῠμος étumos, “true, real” ἐτεός eteós, “true” etymology

PIE *set- (“stable, true”) PIE *h₁sónts *h₁es- (“to be”)

Alphabetic-Change of ε < s combines all forms, alternatively but disprefered ἐτ ~ est via τ

life

ዒጸ ‘īša, “to live” 𓅹
jetë Albanian

Ⰵ Jestu Jestu Є, Е, Э, Ё /ɛ/ Jestъ Yest is/exists Possibly Samaritan īy ࠄ or Greek sampi ϡ[30]
Ⰹ, Ⰺ I, Izhe Izhe Ι, Ї /i/, /j/ Iže Izhe which is/the <?> upsilon Y[35] or iota ϊ[30]

𒊺𒌅 še-tu √set,stay,steh…
𒊺𒌅 leave remaining ⇔ atstāt
⇔
𒊺𒌅 še-tu •h₁s-tó ἐτός
𒊺𒌅 to be, c'est, seid, seist, exist …