Ate is the word.
The 3-letter answer to "had eaten" is almost always "ate." Check the "n."
own
ate
ate
3 letter work beginning with ex
roe
Trisect is a 7-letter word beginning with T. It means to cut into 3 parts.
An Abbot is a holy man beginning with "a" and having five letters.
One living thing with 3 letters starting with e is an eel.
prey
The French port with 6 letters beginning with "D" is Dunkerque.
Berry and Scone