BabyNameScore

Onyx

ON·iks · 2 syllables

Onyx is distinctive.

91/100

Strong Practical Fit

Balanced across pronunciation, everyday use, lifetime fit and international use.

Name Profile

  1. Pronunciation & Spelling

    Clear, with one common misreading

    A documented English pronunciation is on file: ON-iks. Commonly mispronounced as ON-icks with a hard, over-stressed final syllable.

    91/100

  2. Everyday Use

    Low risk

    95/100

  3. Growing Up

    Strong lifetime fit

    Short enough to work in every register without a nickname.

    86/100

  4. International Use

    Broad international fit

    Works cleanly across the assessed languages and writing systems.

    85/100

NAME DETAILS

CLOSE SPELLINGS
Onix
ORIGIN & HISTORY

About the name

The gemstone onyx (a banded variety of chalcedony, often black); ultimately from Greek "claw, fingernail".

  1. ὄνυξ (ónyx) — Ancient Greek form of the source word. The word "onyx" traces through Latin from Ancient Greek ὄνυξ ("claw, fingernail"), a name attributed to the stone because banded pink-and-white specimens can resemble a human fingernail. Historically, onyx and its red-and-white variety sardonyx carried protective and ceremonial associations: ancient Romans carried sardonyx amulets engraved with Mars, the god of war, believing they granted courage in battle; Renaissance European tradition held that sardonyx bestowed eloquence on its wearer; and English midwives traditionally placed sardonyx between a mother's breasts during childbirth in the belief it eased labor. Persian tradition associated the stone with healing, particularly for epilepsy.
  2. Mythological and religious contextOnyx appears repeatedly throughout the Hebrew Bible (e.g. among the gemstones set into the High Priest's breastplate and associated with the land of Havilah in Genesis), reflecting its cultural importance in ancient Judeo-Christian tradition; separately, its red-and-white variety sardonyx was linked in Roman tradition to Mars, the god of war, and was worn as a protective battle amulet.
POPULARITY

Onyx over time

United States
#365RANK

Rank #365 gives national context, not a classroom forecast.

Uncommon in current U.S. usage. Ranked #365 in the U.S., 2025.

SourceU.S. Social Security Administration · 2025 release

Pronunciation & Forms

SAY IT

ON·iks

STRESS ON THE FIRST SYLLABLE

CLOSE SPELLINGS
  • Onix
PRACTICAL LIFE

How This Name Lives

AT SCHOOL & DAY TO DAY

Short, punchy, and easy to say, with a strong, distinctive sound that stands out among more traditional childhood names without being hard to spell or pronounce.

INTO ADULTHOOD

Its gemstone/word-name status gives Onyx a bold, striking quality that can read as confident and stylish in adult life, in the same register as other gem and mineral names (Jasper, Sterling, Opal).

More about Onyx

FORMALITY

Functions identically in formal and informal registers, as it is a short standalone word name without a separate formal long form.

EDITORIAL SYNTHESIS

The Decision

Onyx is spelled without unusual letter patterns, and it holds up in everyday use. Surname-dependent compatibility remains unassessed until a surname is added.

STRENGTH

A documented English pronunciation is on file. Short enough to work in every register without a nickname.

BEST FIT

Everyday Use is the strongest-scoring part of this name — no obvious nickname traps, rhymes, or initial issues detected.

FULL-NAME CHECK

See how it works with a surname.

Onyx