Kost as a Baby Name. Meaning and Origin of Kost

What is the meaning of the name Kost ?

The baby name Kost is a Male name , 1 syllables long and is pronounced /kost/ (one syllable; like 'cost' or 'kost').

Kost is Slavic in Origin.

Kost is a Ukrainian given name (Кость), a concise hypocoristic form of Kostiantyn, the East Slavic equivalent of Constantine. It traces back to Latin Constantinus, from constans, meaning “steadfast, constant.” In Western Ukraine the short form functions independently as a formal name, not only as a nickname, and appears in 19th–20th‑century records and modern usage. The shape aligns with East Slavic diminutive patterns (cf. Kostia/Kostya) while preserving a brisk, one‑syllable profile.

Use is most associated with Galicia and the Ukrainian diaspora; bearers include statesman Kost Levytsky and Cossack leader Kost Hordiienko. Closely related variants and cognates encompass Kostiantyn (Ukrainian), Konstantin (Russian and pan‑Slavic), Konstanty (Polish), Constantine (English), Costin (Romanian), Kosta and Kostas/Costas (South Slavic/Greek). Diminutive forms include Kostia and Kostya. Across these traditions, the core meaning - steadfast, reliable, faithful - remains constant, lending the compact Kost a quietly resolute character.