kišti

Apparently from a Proto-Indo-European *keḱ-, though no non-Lithuanian cognates are known with certainty:^[1]

• Often compared to kim̃šti (“to stuff, cram”), with an irregular deletion of the "m". This is semantically appealing, but phonetically unlikely.^[2]
• Fraenkel prefers a derivation from ki̇̀sti (“to lay (flax stalks) out to dry and thresh”) (which Būga derives from Proto-Indo-European *kʷey- (“to gather, layer”))^[3] + an inchoative suffix *-sḱ.^[2]
• Simas Karaliūnas is skeptical of Fraenkel's derivation due to ki̇̀šti being transitive, while inchoative verbs are usually intransitive, and prefers Hendriksen's derivation from Proto-Indo-European *kʷeys- (“to heed”), whence Latin cūra (“care, concern”).^[4] This is semantically unappealing, in addition to Endzelins noting that Proto-Indo-European *s only turns into š in Lithuanian when following an r or a k.^[2]
• Other theories relate the word to káišti (“to shave, scrape, scratch”).^[5] Smoczynski considers this semantically weak.

ki̇̀šti (third-person present tense ki̇̀ša, third-person past tense ki̇̀šo)^[6][7]

1. to push, thrust, shove