Merriam-Webster's Collegiate Dictionary:
holy day
holy day of obligation
holy father
holy ghost
holy grail
holy island
holy joe
holy land
holy loch
holy of holies
holy office
holy oil
holy order
holy roller
holy roman empire
holy saturday
holy see
holy spirit
holy synod
holy thursday
holy war
holy water
holy week
holy writ
holy year
holyhead
holyhead island
holyoake
holyoke
holystone
hom-
homage
homager
hombre
homburg
home
home brew
home computer
home ec
home economics
home economist
home free
home fried potatoes
home fries
home front
home page
home plate
home port
home range
home rule
home run
home screen
home stand
home theater
home truth
home video
homebody
homebound
homeboy
homebred
homebuilt
homecoming
homegirl
homegrown
homel
homeland
homeless
homelessness
homelike
homeliness
homely
homemade
homemaker
homemaking
homeo-
homeobox
homeomorphic
homeomorphism
homeopath
homeopathic
homeopathically
homeopathy
homeostasis
homeostatic
homeotherm
homeothermic
homeothermy
homeotic
homeport
homer
homeric
homerically
homeroom
homeschool
homeschooler
homesick
homesickness
