Lowercase ae acute (ǽ) is the Latin Extended-B character at Unicode U+01FD (LATIN SMALL LETTER AE WITH ACUTE). It is the ae ligature with an acute accent — used in Old Norse, linguistic notation, and extended Latin orthography.
Remember
Character ǽ
Unicode U+01FD
Hex entity ǽ
Decimal ǽ
CSS escape \01FD
Named entity (none)
Capital Ǽ (U+01FC)
Hex, decimal, CSS, and a typed character all produce the same glyph: ǽ. Prefer ǽ in HTML source when you need an explicit entity.
Using Hex Code: ǽ
Using HTML Code: ǽ
Using CSS Entity: ǽ
Case pair: Ǽ / ǽ
How It Works
1. Hex:U+01FD → ǽ in HTML. The browser turns it into ǽ.
2. Decimal: same code point as 509 → ǽ. Same result as hex.
3. Named: HTML5 does not define a named entity for this character — use hex or decimal instead.
4. CSS: use \01FD in content (not an HTML entity). #point::after appends that ǽ after the paragraph text.
Pitfalls & Tips
Common mistakes when working with lowercase ae acute.
Named
No &…; shortcut
HTML5 has no named entity for U+01FD. Use ǽ or ǽ.
Look-alikes
Not æ or á alone
æ has no acute; á is a different letter. This character is the ae ligature with acute on one glyph.
Compose
Prefer precomposed
Use ǽ instead of stacking combining acute on æ when the precomposed form exists.
CSS vs HTML
Do not mix escapes
\01FD belongs in CSS. ǽ / ǽ belong in HTML.
Encoding
Declare UTF-8
If you type ǽ directly, keep <meta charset="UTF-8"> so the file is not misread.
Fonts
Check glyph coverage
Some fonts omit Latin Extended-B. Pick a font that includes U+01FD if the glyph is missing.
Compatibility
Browser Support
Lowercase ae acute (U+01FD) and its entity forms (ǽ, ǽ, CSS \\01FD) are supported in all modern browsers. Glyph display depends on font coverage.
✓ Universal encoding
Lowercase Ae Acute (ǽ)
Encode with hex, decimal, or CSS escape — or type ǽ 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+01FDFull support
Bottom line: Prefer ǽ for readable HTML. Use \\01FD only inside CSS content.
Remember
Key Takeaways
Unicode: this character is U+01FD (decimal 509).
HTML: prefer ǽ — or use ǽ (no named entity).
One line:U+01FD → ǽ / ǽ / CSS \01FD (no named entity).
Frequently Asked Questions
Use ǽ (hex), ǽ (decimal), or the CSS escape \01FD in the content property. All render ǽ when the font supports Latin Extended-B. There is no named HTML entity.
U+01FD (LATIN SMALL LETTER AE WITH ACUTE). Hex 1FD, decimal 509. It belongs to Latin Extended-B (U+0180–U+024F).
No. HTML5 does not define a named entity for U+01FD. Use numeric references like ǽ or ǽ.
Use it for Old Norse, linguistic notation, extended Latin orthography, and specialized content that needs ǽ (ae with acute).
HTML entities (ǽ or ǽ) go in markup. The CSS escape \01FD is used in stylesheets (usually in the content property of ::before/::after). Both render ǽ.
No. Plain æ is æ (U+00E6). Acute-only á is á (U+00E1). Ae with acute ǽ is U+01FD — the ligature plus acute together.
🤔
Did you know?
Lowercase ae acute is Unicode U+01FD (decimal 509) — LATIN SMALL LETTER AE WITH ACUTE in Latin Extended-B. HTML5 has no named entity — use ǽ or ǽ. Capital is Ǽ (U+01FC). Used in Old Norse, linguistic notation, and extended Latin orthography — not the same as plain æ (æ).
