Tërtius
given name · Latin script
Recorded as a male name· opposite-gender records fall within measured source noise
Tërtius is a male given name written in the Latin script, with more bearers in South Africa than in any other country. Recorded meaning: Tertius is a classic Latin name meaning 'third', with a significant history in early Christianity.
- ZASouth Africa≈1 in 21K(inferred from the name graph)
- NLNetherlands1 in 303K
- GYGuyana1 in 750K
carrying the name, as counted by its national register where one exists and as Mondonomo estimates it elsewhere (marked ≈ and "est." on hover). Countries with no figure are shown too: flat where a national register lists the name without counting it, hatched where only our records hold it. One hue, darker where it is more common; hover a country for its figure.
- South Africa (inferred from the name graph)
- Record sources
- 59 (measured from records)
- ≈1 in 21K (inferred from the name graph)
≈3,100 people, est.
corpus datasets behind its best-documented spelling
strongest: highest-authority source
South Africa, est.
measured from records inferred from the name graph
Spellings & scripts
(measured from records)One other spelling is counted as the same name:
Locally spelled Tertius in ZA South Africa, US United States, AU Australia and 3 more.
Spellings marked ● are how people bearing the name write it in our records, and ○ marks a model's transliteration; click a spelling to open its page.
Meaning & origin
(measured from records)Tertius is a classic Latin name meaning 'third', with a significant history in early Christianity. In the Bible, he was the trusted scribe who wrote down the important Epistle to the Romans, making the name a symbol of diligence and faithful service.
Cited for this meaning 2
- Biblical Names Compiled Database
- Nordic Names
Attested across 3 languages in the etymology graph.
Where in the world
(measured from records)Tërtius counted together with the spellings and other-language forms grouped with it. Where a register counted another spelling, the row names it.
Sorted by bearers: national registers' counts, and Mondonomo's estimates (≈, est.) where no register counts.
| Country | Most common spelling | Sources | |||
|---|---|---|---|---|---|
| ZA South Africa | ≈3,100 est. | ≈1 in 21K | — | Tertius | 36 |
| US United States | ≈75 est. | ≈1 in 4.6M | 6 | Tertius | 59 |
| NL Netherlands | 57 | 1 in 303K | 57 | Tertius | 8 |
| AU Australia | ≈34 est. | ≈1 in 798K | — | Tertius | 23 |
| NG Nigeria | ≈24 est. | ≈1 in 9.6M | — | Tertius | 3 |
| GB United Kingdom | ≈21 est. | ≈1 in 3.4M | listed | Tertius | 29 |
| GY Guyana | 1 | 1 in 750K | 1 | — | 1 |
Exact figures are national registers' own counts, while figures marked ≈ and est. are Mondonomo’s estimates, counted from our sources and calibrated against those registers; hover one for how far to trust it in that country. A dash means neither exists.
Registers cited: SSA — National Baby Names (1880–present); Meertens NVB — Nederlandse Voornamenbank (all-time BRP bearer counts, 2018); Guyana — Official List of Electors July 2025. Figures without a register are Mondonomo estimates; see Methodology.
Country figures for a list of names, at full precision, are available under licence rather than by scraping this table (how that works).
Evidence
(measured from records)No register attests this spelling yet
Frequently asked questions
- What does the name Tërtius mean, and where does it come from?
- Tertius is a classic Latin name meaning 'third', with a significant history in early Christianity. Recorded by Biblical Names Compiled Database and Nordic Names.
- Is Tërtius a male or female name?
- Tërtius is a male name in our records. Opposite-gender entries fall within the cross-gender noise we measure in the source data, so we don't report them as usage.
- In which country does Tërtius have the most bearers?
- Mondonomo estimates about 3.1 thousand people named Tërtius in South Africa, more than in any other country we hold, where it is most often spelled tertius.
- How common is the name Tërtius?
- In the Netherlands, the national register counted 57 people named Tërtius, about 1 in 303 thousand residents.
What do you want to know about Tërtius?
Nobody replies to these one by one, but what readers ask decides what these pages answer next.
Query this name via API
curl -H "X-API-Key: YOUR_KEY" https://api.mondonomo.ai/api/v1/name-graph/t%C3%ABrtiusThe payload this page is built from: spellings and scripts, countries and languages, related names, and the registers that attest the form. It takes a free API key (1,000 requests a day), which returns what this page shows everyone; the full country table, every register citation and the year-by-year series come with a licensed key, as does bulk access.
About this data
measured from records inferred from the name graph machine-generated
These figures come from the data snapshot of and will change as it is rebuilt.
Statistics are aggregated from the Mondonomo name corpus; related names and etymology are inferred from the name graph; pronunciation and any machine-marked transliterations are model-generated. Read how the numbers are made, including their known failure modes, and where the data comes from.
Reference works we consult — surname dictionaries, official name registers, Wikidata and Wiktionary — are named directly, beside the claims they support. The per-country source counts also include datasets of person records: we publish how many there are and their authority tier, but not their names.
Cite this page Mondonomo, “Tërtius”. Data snapshot 2026-10-13.