Feline is not related to Latin felix ("happy, fortunate, blessed").
It comes from a completely different Latin word: fēlēs (genitive: fēlis), which means "cat" or "wildcat."Etymology Comparison
| Word | Latin Root | Meaning of Root | English Descendants |
|---|---|---|---|
| feline | fēlēs / fēlis | "cat" | feline, felid, felinity, feliform, etc. |
| felicity etc. | felix (stem felic-) | "happy, fortunate, blessed" | felicity, felicitous, felicitate, etc. |
Key Points
- The similarity in spelling (feli- vs feli-) is purely coincidental — a case of false cognate or folk etymology.
- Fēlēs (cat) is an ancient Latin word with no known connection to happiness or blessing. Its origins are uncertain, possibly onomatopoeic or from an Indo-European root related to "wild animal."
- Felix (happy) is thought to derive from an earlier root meaning "fertile" or "productive" (related to fēcundus "fertile" and fēcundus "fruitful"), which aligns with ideas of good fortune or blessing.