There are no English words that meet the criteria. However, there are two 20-letter words that begin with E and end with T.
electroluminescent, ethnomethodologist
Four letter word beginning with Z and ending with T:Zest
Vanquish is an eight letter word. Vermouth is another word beginning with v and ending with h.
A 'score' is twenty.... so four score is eighty.
Africa
A four letter word beginning with C and ending with X is crux.
"Lucky" is a five letter word beginning with l
Actionacumen attain
hashish, hashish,
vowing
Anxiety
ultra, umbra
widow