Lowercase E Latin Subscript (ₑ) is the Superscripts and Subscripts character at Unicode U+2091 (LATIN SUBSCRIPT SMALL LETTER E). It is a dedicated subscript form of the letter e — useful in chemistry, math, and linguistic notation.
Remember
Character ₑ
Unicode U+2091
Hex entity ₑ
Decimal ₑ
CSS escape \2091
Named entity (none)
Hex, decimal, CSS, and a typed character all produce the same glyph: ₑ. Prefer ₑ in HTML source when you need an explicit entity.
Using Hex Code: ₑ
Using HTML Code: ₑ
Using CSS Entity: ₑ
In context: xₑ
How It Works
1. Hex:U+2091 → ₑ in HTML. The browser turns it into ₑ.
2. Decimal: same code point as 8337 → ₑ. Same result as hex.
3. Named: HTML5 does not define a named entity for this character — use hex or decimal instead.
4. CSS: use \2091 in content (not an HTML entity). #point::after appends that ₑ after the paragraph text.
Pitfalls & Tips
Common mistakes when working with Latin subscript small letter e.
Named
No &…; shortcut
HTML5 has no named entity for U+2091. Use ₑ or ₑ.
Look-alikes
Not <sub>e</sub> or U+0364
<sub> styles a normal letter. Combining Latin small e (U+0364) stacks on a base. This is a dedicated subscript glyph.
Semantics
Character vs markup
Use ₑ when you need the Unicode subscript letter in plain text. Use <sub> when structure/styling of normal text is enough.
CSS vs HTML
Do not mix escapes
\2091 belongs in CSS. ₑ / ₑ belong in HTML.
Encoding
Declare UTF-8
If you type ₑ directly, keep <meta charset="UTF-8"> so the file is not misread.
Fonts
Check glyph coverage
Some fonts omit subscript letters. Pick a font that includes U+2091 if the glyph is missing.
Compatibility
Browser Support
Latin subscript small letter e (U+2091) and its entity forms (ₑ, ₑ, CSS \\2091) are supported in all modern browsers. Glyph display depends on font coverage.
✓ Universal encoding
Lowercase E Latin Subscript (ₑ)
Encode with hex, decimal, or CSS escape — or type ₑ directly in UTF-8 HTML.
100%Browser coverage
Google ChromeSupported
Yes
Microsoft EdgeSupported
Yes
Mozilla FirefoxSupported
Yes
Apple SafariSupported
Yes
OperaSupported
Yes
Internet ExplorerIE 9+
Yes*
U+2091Full support
Bottom line: Prefer ₑ for readable HTML. Use \\2091 only inside CSS content.
Remember
Key Takeaways
Unicode: this character is U+2091 (decimal 8337).
HTML: prefer ₑ — or use ₑ (no named entity).
CSS: use \2091 inside content for generated text.
Watch out:ₑ ≠ letter e ≠ combining U+0364 ≠ <sub>e</sub>.
One line:U+2091 → ₑ / ₑ / CSS \2091 (no named entity).
Frequently Asked Questions
Use ₑ (hex), ₑ (decimal), or the CSS escape \2091 in the content property. All render ₑ when the font supports it. There is no named HTML entity.
U+2091 (LATIN SUBSCRIPT SMALL LETTER E). Hex 2091, decimal 8337. It belongs to Superscripts and Subscripts (U+2070–U+209F).
No. HTML5 does not define a named entity for U+2091. Use numeric references like ₑ or ₑ.
Use it for chemistry, mathematics, linguistics, electron notation, and any text that needs a true subscript letter e without HTML sub markup.
HTML entities (ₑ or ₑ) go in markup. The CSS escape \2091 is used in stylesheets (usually in the content property of ::before/::after). Both render ₑ.
No. <sub>e</sub> is HTML markup that styles a normal e. U+0364 is a combining mark above a base. U+2091 is a dedicated subscript letter character.
🤔
Did you know?
Lowercase E Latin Subscript is Unicode U+2091 (decimal 8337) — LATIN SUBSCRIPT SMALL LETTER E in Superscripts and Subscripts. HTML5 has no named entity — use ₑ or ₑ. It is a standalone subscript glyph, not combining mark U+0364 and not the same as <sub>e</sub> markup.
