Literally, “three teeth” Crossword Clue

 The answer to the crossword clue "Literally, “three teeth”" is TRIDENT.

A trident is a spear with three prongs. It is often associated with Poseidon, the Greek god of the sea, and other sea deities.

The word "trident" comes from the Latin words "tri," meaning "three," and "dens," meaning "tooth."

Here is a fun fact: The trident is also the symbol of the United States Coast Guard.

I hope this helps!