HTML Entity for Lowercase Ae Acute (ǽ)

Beginner
⏱️ 5 min read
📚 Updated: Jun 2026
🎯 1 Code Example
Unicode U+01FD
HTML Entity for Lowercase Ae Acute tutorial illustration

What You'll Learn

How to display the lowercase ae with acute (ǽ) in HTML using hexadecimal, decimal, and CSS escape methods. This character combines the ae ligature (æ) with an acute accent and is used in certain linguistic and historical contexts, including Old Norse and extended Latin orthography. It is U+01FD in the Latin Extended-B block.

Render it with ǽ, ǽ, or CSS escape \01FD. There is no named HTML entity for this character, so numeric codes or CSS must be used.

⚡ Quick Reference — Lowercase Ae Acute Entity

Unicode U+01FD

Latin Extended-B

Hex Code ǽ

Hexadecimal reference

HTML Code ǽ

Decimal reference

Named Entity —

No named entity

Reference Table
Name           Value
────────────   ──────────
Unicode        U+01FD
Hex code       ǽ
HTML code      ǽ
Named entity   (none)
CSS code       \01FD
Meaning        Latin small letter ae with acute
Block          Latin Extended-B (U+0180–U+024F)
1

Complete HTML Example

A simple example showing the lowercase ae acute (ǽ) using hexadecimal code, decimal HTML code, and a CSS content escape:

html
<!DOCTYPE html>
<html>
<head>
 <style>
  #point:after{
   content: "\01FD";
  }
 </style>
</head>
<body>
<p>Symbol (hex): &#x01FD;</p>
<p>Symbol (decimal): &#509;</p>
<p id="point">Symbol (CSS): </p>
</body>
</html>
Try it Yourself

🌐 Browser Support

The lowercase ae acute (ǽ) renders correctly in modern browsers when UTF-8 is used:

Chrome1+
Firefox1+
Safari1+
Edge12+
Opera4+
Android4.4+
iOS Safari1+

👀 Live Preview

See the lowercase ae acute (ǽ) and how it differs from related characters:

Large glyphǽ
Character typeae ligature + acute accent
Not the same asæ (ae only) or á (a acute)
Unicode blockLatin Extended-B (U+0180–U+024F)
Numeric refs&#x01FD; &#509; \01FD

🧠 How It Works

1

Hexadecimal Code

&#x01FD; uses the Unicode hexadecimal value 01FD to display the character. The x prefix indicates hexadecimal format.

HTML markup
2

Decimal HTML Code

&#509; uses the decimal Unicode value 509 to display the same character. A common method for Latin Extended-B characters.

HTML markup
3

CSS Entity

\01FD is used in CSS stylesheets, particularly in the content property of pseudo-elements like ::before and ::after.

CSS stylesheet
=

Same visual result

All three methods produce the glyph: ǽ. Unicode U+01FD sits in Latin Extended-B. Do not confuse ǽ with æ (ae ligature, U+00E6). There is no named HTML entity.

✅

Use Cases

The lowercase ae acute (ǽ) is commonly used in:

🔤 Linguistics

Phonetic transcriptions and linguistic notation requiring the ae-with-acute character.

📚 Academic

Dictionary entries, scholarly texts, and language references with Old Norse or extended Latin characters.

🌐 Internationalization

Websites requiring correct rendering of Latin Extended-B for linguistic or historical content.

📄 Publishing

Books, articles, and editorial content with historical texts or specialized terminology using ǽ.

🎨 Orthography

Extended Latin orthographic systems combining the ae ligature with acute accent.

🔍 Search & SEO

Correct encoding so specialized content is indexed and displayed consistently.

📧 Forms & Input

User input that may contain ǽ; use UTF-8 encoding and numeric entities as needed.

💡 Best Practices

Do

  • Use &#509; or &#x01FD; in HTML (no named entity exists)
  • Serve pages as UTF-8; you can also type ǽ directly in UTF-8 source
  • Pick one style (hex or decimal) per project for consistency
  • Use fonts that support Latin Extended-B (U+0180–U+024F)
  • Distinguish ǽ from æ (ae ligature) and other accented characters

Don’t

  • Assume a named entity exists—there is none for ǽ
  • Substitute æ when ǽ is required for accuracy
  • Put CSS escape \01FD in HTML text nodes
  • Assume all fonts render Latin Extended-B glyphs identically
  • Mix entity styles randomly in one file

Key Takeaways

1

Three references render ǽ (no named entity)

&#x01FD; &#509;
2

For CSS stylesheets, use the escape in the content property

\01FD
3

Unicode U+01FD — LATIN SMALL LETTER AE WITH ACUTE

4

Used in linguistic notation, Old Norse, and extended Latin orthography

5

Previous: Lowercase Ae (æ)   Next: Lowercase Ae Dash

❓ Frequently Asked Questions

Use &#x01FD; (hex), &#509; (decimal), or \01FD in CSS content. There is no named HTML entity; use numeric codes or CSS.
U+01FD (LATIN SMALL LETTER AE WITH ACUTE). Latin Extended-B block. Hex 01FD, decimal 509. Used in linguistic and historical notation, including Old Norse.
In linguistic and phonetic content, Old Norse or extended Latin orthography, academic and dictionary entries, language learning materials, and any text requiring the ae-with-acute character.
HTML code (&#509; or &#x01FD;) is used in HTML content. The CSS entity (\01FD) is used in CSS, e.g. in the content property of pseudo-elements. Both produce ǽ but in different contexts.
No. There is no named HTML entity for ǽ. Use &#509; or &#x01FD; in HTML, or \01FD in CSS. This is standard for many Latin Extended-B characters.

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About the author

Mari Selvan M P
Mari Selvan M P 🔗

Developer, cloud engineer, and technical writer

  • Experience 12 years building web and cloud systems
  • Focus Full Stack Development, AWS, and Developer Education

I write practical tutorials so students and working developers can learn by doing—from databases and APIs to deployment on AWS.

AWS Certified Developer – Associate (Credly)

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