How to Say “Happy Birthday” in Old English

By Erik Harrison • Updated October 1, 2026

Gesǣlig gebyrddæg

The English phrase "happy birthday" is translated into Old English as Gesǣlig gebyrddæg.

This phrase is used to express good wishes for someone's birthday.

Meaning: good wishes for a birthday (intj)

Did you know?

While we use 'happy' today, the root of gesǣlig is related to the word 'selig', which in later English became 'silly' but originally meant 'blessed'.
The word gebyrddæg is attested in Old English texts, built from gebyrd (birth) and dæg (day).

Example conversation

Eadric gives a gift to Mildryth.

Eadric

Gesǣlig gebyrddæg, Mildryth!
Happy birthday, Mildryth!
Mildryth

Ic þancie þē, Eadric.
I thank you, Eadric.
Eadric

Hēr is þīn gifu.
Here is your gift.
Mildryth

Þis is swīðe gōd!
This is very good!

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About The Author

Erik Harrison

'Eow greetan geþyldiga Mannas,' I'm Erik, an ardent admirer of Old English. Within me, ondowersæcnesse sprouts from a fascination with history and a passion for linguistic quirks. I find solace in uncovering the tapestry of words 'from yesteryears and yonder.' You'll often find me jotting down phrases in this ancient tongue or indulging my love for historical fiction. My posts are hearty tributes to our language's forgotten strands - an endeavored celebration of the past met with the present. 'Þæs ofereode,' come and join me on a journey through the words that once were.

Erik HarrisonHelp make this guide better. Spot a mistake, know another way to say it, or have an example from real life? Share it below.

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