non-originak observation: basically anything that ends in the letter "a" can sound like a girl's name. sciatica. helvetica. tiara. fuerteventura. jeremiah. urethra.
by the same romance language* token, i reckon anything ending in an "o" can be a fella's name. mario. humberto. frodo. uh-oh. contrapposto. mario. all of those are real names actually but you see my point...
*i assume