Eirenaeus as a Baby Name. Meaning and Origin of Eirenaeus

What is the meaning of the name Eirenaeus ?

The baby name Eirenaeus is a Male name , 4 syllables long and is pronounced eye-ree-NAY-us (IPA: /aɪriːˈneɪəs/).

Eirenaeus is Greek, Latin in Origin.

Eirenaeus is a learned form of the Greek personal name Eirenaios, derived from eirene, "peace," with the adjectival suffix -aios, hence "peaceful" or "belonging to peace." In Latin transmission the initial vowel shifted to I, producing the widely known Irenaeus; the spelling with Ei- reflects closer transliteration of the Greek and appears in scholarly or ecclesiastical contexts.

Use of the name is anchored to early Christianity through Saint Irenaeus of Lyons (2nd century), an influential bishop and theologian, which ensured its survival in patristic literature, medieval hagiography, and Orthodox and Catholic naming, though it remains rare as a modern given name. International variants include Irenaeus (Latin/English), Irénée (French), Ireneo (Italian, Spanish), Irineu (Portuguese, Romanian), Ireneusz (Polish), Irinej (Serbian, Slovene), and Irineios/Eirinaios (Greek). Feminine cognates are found in Irene and its many forms.

⚙ We can't find Eirenaeus in any of the birth registries or name datasets we track. It's the kind of name that tends to be rare, regional, or newly made up. However you look at it, very few people share it.