felc : cat
The Illunse word for cat is felc. Felc is a rare last name. Similar Felk is an uncommon last name.
This word is a mixture of the Latin word for cat feles and the Old English word for cat which is catt.
Another word for cat in Latin is catus.
My previous Illunse word for cat was felca. I'm dropping the final A. The A reappears in the plural.
felcas : cats
The Illunse word for cats (nominative plural) is felcas. Felcas Health Center of Miami, Florida.
Cats in Latin is felis. Cats in Old English is cattas.
Here's a link to Cat, in J.R.R. Tolkien's words. I couldn't find a Sindarin word for cat, and the Quenya words are unusual.