Latin origin
Source-reportedBorrowed from Latin Cōnstantius
Sources for this account (1)
- Wiktionary: ConstantiusCC-BY-SA-4.0 · retrieved 2026-10-15
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Latin roots
[kõːˈstan.ti.ʊs] · Latin (Classical Latin)
01 / Meaning & origin
Constantius is a masculine given name documented in English and Latin. English Wiktionary traces it to Latin Cōnstantius.
3 source accounts
Borrowed from Latin Cōnstantius
Patronymic from Cōnstāns + -ius.
łac. Constans + -ius
02 / Across borders
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Documented as a given name in English.
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03 / By the numbers
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04 / Through time
Passages quoted verbatim from public-domain reference works. They reflect the scholarship of their time, not current consensus, and may use obsolete spellings.
CONSTANTIUS— “firm”
So late, indeed, did Constantius become prominent in history in the person of Flavius Valerius Constantius, that he does not even seem to have had a prænomen, and his sons and grandsons varied the cognomen by way of distinction into Constans and Constantinus. Of these the first Christian emperor rendered the diminutive glorious, and though it has not been much copied in the West, Κονστάντινος is one of the very few Latin names that have been Latinized among the Greeks, as…
So late, indeed, did Constantius become prominent in history in the person of Flavius Valerius Constantius, that he does not even seem to have had a prænomen, and his sons and grandsons varied the cognomen by way of distinction into Constans and Constantinus. Of these the first Christian emperor rendered the diminutive glorious, and though it has not been much copied in the West, Κονστάντινος is one of the very few Latin names that have been Latinized among the Greeks, as well it might be, in memory of the emperor who transported the seat of empire to a Greek city, and changed its appellation from Byzantium to Constantinopolis.
Yonge, History of Christian Names (1884), Part IV, Chapter IV (Cognomina), Section V (Constantius) · Public domain (Project Gutenberg)
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06 / Behind the facts
Review status: Source-reported — no editorial review recorded yet. Last data change 2026-10-15.
Wiktionary text: CC BY-SA 4.0. Wikidata: CC0. Commons recordings retain their individual file licences. Complete attribution is available in each group above and alongside each chart.