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ₒ

latin subscript small letter o

Latin Subscript Small Letter O

ₒ has no fixed meaning alone; in Indo-European linguistics it can mark a vowel-quality change linked to a reconstructed laryngeal consonant, inferred for an earlier stage. It is a distinct plain-text character, not an ordinary o made smaller with formatting.

Text symbol
Search it as
subscript o · o subscript · subscript letter o · inferior o
Shows up in
Anything that takes text · its shape is whatever your font draws

What ₒ means

It has no universal meaning; surrounding notation determines its value. In Indo-European linguistics, Hₒ can mark a vowel-quality change linked to a reconstructed laryngeal—a consonant inferred for an earlier stage.

Why use subscript o in plain text?

It remains a distinct character when formatting disappears. Medieval manuscripts used lowered letters for abbreviation. A 2004 Unicode proposal lists ₒ with ₐ, ₑ, and ₓ for Indo-European notation. Mathematical markup or text formatting suits a fully styled equation; ₒ is itself a plain-text character.

Technical and specialist; it reads as notation, not casual emphasis.

Don't read it as universal; surrounding notation determines its value.

Don't confuse it with

4
ₐ
Latin Subscript Small Letter A
shares “latin”, “letter”, “small”, “subscript”
ₑ
Latin Subscript Small Letter E
shares “latin”, “letter”, “small”, “subscript”
ₓ
Latin Subscript Small Letter X
shares “latin”, “letter”, “small”, “subscript”
ₔ
Latin Subscript Small Letter Schwa
shares “latin”, “letter”, “small”, “subscript”

Questions people ask

1

Why does ₒ show as a box on some devices?

Because that device's fonts have no glyph for it. The character is still correct and still copies correctly — the box is a missing glyph, not a broken character.

How to type ₒ

Windows (Word)
Alt+XType 2092, then Alt+X to get ₒ.
Windows
Win+Rrun charmap for the full table, or use the emoji picker's Ω symbols tab (Win + .).
macOS
Control+Command+SpaceOpen the character viewer and search “latin subscript small letter o”.
Linux
Ctrl+Shift+UType 2092, then Enter or Space.
HTML
ₒ
CSS
\2092
Codes and encoding1 code points
HTML decimal
ₒ
HTML hex
ₒ
CSS content
content: "\2092";
Each escape is closed by the next backslash; a trailing space is needed before a literal hex digit.
URL encoded
%E2%82%92
1
On screen
1
Code points
1
JS .length
3
UTF-8 bytes

A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.

Families this belongs to

1

Maths & numbers1,835 symbols

1️⃣📏📐✖️➕➖➗🟰♾️#️⃣*️⃣0️⃣