Etymon

Trace a word to its ancestor

Enter a word in any language. We’ll follow its history back to its oldest known root and uncover its relatives across thousands of languages.

A story in one root

Baghdad, data & a dowry

Baghdad comes from Old Persian Baga-dāta, “given by god”. That -dāta, “given”, is the same word as Latin datum, “a thing given”, whose plural data now fills our spreadsheets. Both grew from one Proto-Indo-European root, *deh₃-, “to give”, which also became Sanskrit dāna(“gift”), and reached English as donate, dose and dowry, through Latin and Greek.

Baghdadvia Old Persian“given by god”dataLatin datum“a thing given”दानSanskrit dāná“gift”donatevia Latin dōnō“to give as a gift”dosevia Greek dósis“a giving”dowryvia Latin dōs“marriage gift”*deh₃-PIE · “to give”

What you can explore

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Follow a word back, step by step, to its oldest known root: inherited, borrowed or built from parts, with the language and period of every ancestor.

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Two ways to see it

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Same meaning, other languages

Compare “chair” with silla, കസേര or كرسي and draw their lineages side by side. Sometimes they meet at a common ancestor, sometimes not.

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Cousins & stories

See the words in your language that grew from the same root (data, donate, dose, Baghdad) with a short story of how one root became many words.

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Pronunciations with recordings, approximate readings of reconstructed words, and when each language or word was in use.

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Type in native script or romanized (अमृत or amrta), or search by meaning: “fog” in Sanskrit finds नीहार.