hitch ethic
forehead
The word you can form with the letters a, c, h, t, m, e, s, and o is "coast."
homestead
herbivore
gopher
Home H-O-M-E sweet H-O-M-E
In English the largest word you can make is woaded, which uses six of the seven letters. There are no valid seven-letter combinations from the pattern a d d e h o w.
There is no single English word that meets the criteria.
Chamomile.
preschool
It is spelt hole.