How we score harmony
The harmony score (0–100) estimates how well a name sounds next to a surname. It combines three signals. Here's how each one works.
Size and contrast
Short surnames (fewer than 5 letters, like “Cruz”) pair better with longer names; long surnames call for shorter ones. We reward contrast and penalize “short + short” and “long + long” pairings.
Cacophony
When the end of the name collides with the start of the surname (same letter, as in “Lucas Silva”, two sibilant sounds, a repeated vowel at the join, or a rhyme between the two), the pair slurs together. These clashes lower the score.
Cadence and syllables
Names with 3–4 syllables tend to sound balanced; very short or very long names (6+ syllables) lose points. The calculation runs in your browser, instantly, without sending the surname to any server.
Where the etymology comes from
Name etymology comes from reference works, cited on the page itself, with a link. The rule has no exceptions: nothing goes in without a source. A name someone will give a child is not deduced by analogy, and not filled in with whatever sounds plausible.
Where the research has not been done, the page shows the meaning, origin and rarity from the catalog, and nothing more. The origin section simply does not appear. We prefer a visible gap to an invisible invention.
When it was checked
Every researched profile carries the date its sources were last checked. The date is not when the text was written: it is when it was verified.
Guides carry a publication date and an updated date. When the content changes, the updated date changes with it — and only then. We do not touch the date to fake freshness.
Errors and corrections
A published error gets corrected, and the correction is recorded. In September 2026, the catalog listed Sora as a feminine name and Akira as masculine. The reference work lists both as unisex, and both were corrected.
How the error surfaced is worth telling: only once the page began answering “is this a boy's name or a girl's name?” outright. While the data was just a badge beside the name, nobody checked it. Answering questions forces you to be right — which is why we answer them.
What AI does here, and what it does not
AI widens the generator's suggestions when the catalog is not enough. That is all. It does not compute the harmony score, it does not write the guides, and it does not invent meanings.
The harmony score is deterministic and runs in your browser. The guides and the name profiles are written and reviewed by a person, with the source cited. Mass-generated text with no value of its own is what search engines call scaled content abuse — and it is not what we do here.