With grep, a dictionary wordlist, and a simple regular expression:
$ grep -h ^oo....y$ twl words
oomancy
oometry
ooscopy
Some five letter words ending in "l" include:availlevelwheeltrialtrillbevelbroilspellspoilspillkrillpupil
'Jolty' is the only proper 5 letter word ending in 'olty' that I can find.
Hudson
orthodox
Donor.
a mirror
sousaphone
endeavors
there are none. i did not find any.
Ugain (twenty).
At the seaside you would find girls, goggles and gulls. They begin with the letter g.
Johnson & Johnson Baby Shampoo