Compound words that start with one:
A compound word that starts with "dress" is "dresser."
One compound word that starts with gun is gunpowder
"Lookout" is a compound word that starts with "look".
a compound word that starts with y is yourself
Applesauce is a compound word that starts with "a".
One could be headache.
One option is drugstore.
"babyfaced" is one such word. "babyproof" is another.
A compound word that starts with shape could be shape up.
software
Wildlife is a compound word.
outward