Constantinus as a Baby Name. Meaning and Origin of Constantinus

What is the meaning of the name Constantinus ?

The baby name Constantinus is a Male name , 4 syllables long and is pronounced kon-STAN-ti-nus (Latin IPA: /konˈstan.ti.nus/).

Constantinus is Latin in Origin.

Constantinus is the learned Latin form of a late Roman cognomen derived from constans, constantis, "steadfast, faithful," with the adjectival suffix -inus, yielding "the steadfast one" or "belonging to constancy." It appears in imperial nomenclature, most famously Flavius Valerius Constantinus (Constantine the Great), and in ecclesiastical Latin as the formal register for Constantine-type names.

The name flourished from Late Antiquity through the Byzantine era, borne by emperors, saints, and one pope (Constantine, r. 708-715), which secured its transmission across the Christian world. Though rare in English today, its relatives remain widespread: Constantine (English), Constantino (Italian/Spanish/Portuguese), Constantin (French/Romanian), Konstantin (German and Slavic), Konstantinos (Greek), Konstanty (Polish), Kostiantyn (Ukrainian), Konstantinas (Lithuanian), Kostadin (Bulgarian), Constantijn (Dutch), Kostandin (Albanian), and Konstantine (Georgian). Diminutives include Costa, Kosta, Kostya, Tino, and Dino. Medieval chancery Latin and later humanist scholarship kept Constantinus visible in records, while its variants still signal steadiness, reliability, and faithful resolve.

⚙ Constantinus is a genuine rarity. We hold just 7 recorded uses of it, from 5 countries.