HTML Entity for Greek Dialytika Tonos ( ̈́)

Intermediate
⏱️ 5 min read
📚 Updated: Jun 2026
🎯 1 Code Example
Unicode U+0344

What You'll Learn

How to insert the combining Greek Dialytika Tonos (U+0344) in HTML using hexadecimal, decimal, and CSS escape methods. This mark is U+0344 (COMBINING GREEK DIALYTIKA TONOS) in the Combining Diacritical Marks block (U+0300–U+036F). It merges the dialytika (diaeresis) with the tonos (acute accent) for polytonic Greek.

Place it after a base Greek letter (e.g. ΐ for iota with dialytika tonos). Use ̈́, ̈́, or CSS \0344. There is no named HTML entity. Modern monotonic Greek often uses precomposed characters (e.g. ΐ); polytonic and scholarly text may still build marks with combining sequences.

⚡ Quick Reference — Greek Dialytika Tonos

Unicode U+0344

Combining Diacritical Marks

Hex Code ̈́

Hexadecimal reference

HTML Code ̈́

Decimal reference

Named Entity

Use numeric codes only

Reference Table
Name           Value
────────────   ──────────
Unicode        U+0344
Hex code       ̈́
HTML code      ̈́
Named entity   (none)
CSS code       \0344
Meaning        Dialytika + tonos (Greek)
Position       Above base Greek letter
Example        ΐ (iota + mark)
1

Complete HTML Example

This example shows the Greek Dialytika Tonos (U+0344) with iota (ι) using hexadecimal code, decimal HTML code, and a CSS content escape. Always place the combining mark after the base letter:

html
<!DOCTYPE html>
<html>
<head>
 <style>
  #point:after{
   content: "\0344";
  }
 </style>
</head>
<body>
<p>Dialytika Tonos using Hexadecimal: &#x03B9;&#x0344; &#x03C5;&#x0344;</p>
<p>Dialytika Tonos using Decimal: &#x03B9;&#836; &#x03C5;&#836;</p>
<p id="point">Dialytika Tonos using CSS Entity: &#x03B9;</p>
</body>
</html>
Try it Yourself

🌐 Browser Support

The Greek Dialytika Tonos (U+0344) renders when fonts support Greek and Combining Diacritical Marks stacking:

Chrome 1+
Firefox 1+
Safari 1+
Edge 12+
Opera 4+
Android 4.4+
iOS Safari 1+

👀 Live Preview

Greek Dialytika Tonos (U+0344) on iota and upsilon, compared to separate dialytika and tonos marks:

ι + U+0344 (hex) ΐ
υ + U+0344 (decimal) ΰ
Mark alone ̈́
Separate marks (ΐ) ΐ
Numeric refs &#x0344; &#836; \0344

🧠 How It Works

1

Hexadecimal Code

&#x0344; uses Unicode hexadecimal 0344. Place it after the base Greek letter (e.g. &#x03B9;&#x0344;) so the dialytika tonos stacks above.

HTML markup
2

Decimal HTML Code

&#836; uses decimal Unicode value 836 for the same combining character.

HTML markup
3

CSS Entity

\0344 is used in CSS, typically in the content property of ::after on an element that already contains the base letter.

CSS stylesheet
=

Combining above the base

U+0344 is one code point for dialytika + tonos. Order in HTML: base letter, then combining mark. Next: Greek Koronis (U+0343).

Use Cases

The Greek Dialytika Tonos (U+0344) is commonly used in:

📜 Polytonic Greek

Classical, Koine, and scholarly Greek with full accent and breathing notation on vowels.

📖 Classics & literature

Ancient Greek poetry, drama, and critical editions that preserve historical orthography.

🎓 Linguistics

Philology, phonology, and academic papers on Greek accentuation systems.

📖 Religious texts

Liturgical and scriptural Greek publications using polytonic diacritics.

📚 Language learning

Courses and apps teaching correct Greek accent and diaeresis combinations.

🌐 Multilingual sites

i18n content that must render Greek combining marks reliably across browsers.

💡 Best Practices

Do

  • Place U+0344 after the base Greek letter in markup
  • Use Greek-capable fonts (e.g. GFS Didot, Palatino, system Greek fonts)
  • Declare UTF-8 with <meta charset="utf-8">
  • Prefer precomposed characters (ΐ) when your style guide allows NFC
  • Test polytonic rendering on mobile and desktop browsers

Don’t

  • Put the combining mark before the base letter
  • Expect a named HTML entity for U+0344
  • Use CSS \0344 in HTML text nodes
  • Assume every font stacks dialytika and tonos identically
  • Mix unrelated combining marks without checking Unicode normalization

Key Takeaways

1

Two HTML numeric references plus CSS insert U+0344

&#x0344; &#836;
2

For CSS, use \0344 in content after the base letter in the element

3

Unicode U+0344 — COMBINING GREEK DIALYTIKA TONOS

4

Example sequence: &#x03B9;&#x0344; (ι with mark)

❓ Frequently Asked Questions

Use &#x0344; (hex), &#836; (decimal), or \0344 in CSS content. There is no named entity. Place the code after a base Greek letter (e.g. &#x03B9;&#x0344;) so the diacritic appears above it.
U+0344 (COMBINING GREEK DIALYTIKA TONOS). Combining Diacritical Marks block. Hex 0344, decimal 836. It unifies dialytika and tonos in one combining character.
In Greek polytonic orthography, classical and Koine Greek, linguistics, religious Greek content, language learning, and anywhere you need dialytika + tonos on vowels such as ι and υ.
HTML references (&#836; or &#x0344;) go in markup after the base letter. The CSS escape \0344 is used in stylesheets, typically on ::after when the base letter is already in the element.
Named entities cover common characters; combining diacritics in the Combining Diacritical Marks block use numeric hex or decimal codes or CSS escapes. That is standard for marks like U+0344.

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About the author

Mari Selvan M P
Mari Selvan M P 🔗

Developer, cloud engineer, and technical writer

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