The initial idioms of the letter O

overstep the bounds (of something)	overstep (one's)/its mark
over the counter	over the course of
over the edge	over the hill
over the hills and far away	over the hump
over the hump 1	over the line
over the long term	over the moon
over the short term	over the top
over the transom	over the wall
over there	over with
overamped	overboard
underpromise and overdeliver	overdo it
overdose	overdrive
over-egg the pudding	overflow
overflow into	overflow with
overjolt	overkill