Here are seven-letter English words that end with "late":
acylate, adulate, bullate, chelate, cholate, collate, dealate, deflate, emulate, fellate, gallate, inflate, isolate, ovulate, oxalate, prelate, prolate, reflate, replate, reslate, stylate, sublate, ululate, vallate, violate
A seven letter word that starts with D and ends with T: decrypt
spumoni
Duchess is a seven letter word.
algebra
pursuit
A seven (7) letter word that starts with M and ends with O: memento
chemise
quinine
discard
decrees.
therein
thought