probate vs hold over

probate is a noun but hold over is not a noun.

Word	Noun	Adjective	Verb	Adverb
probate	Yes	No	Yes	No
hold over	No	No	Yes	No

As verbs, hold over is a hypernym of probate; that is, hold over is a word with a broader meaning than probate:

Other hypernyms of probate include defer, postpone, prorogue, put off, put over, remit, set back, shelve, table.

probate (noun)	hold over (noun)
the act of proving that an instrument purporting to be a will was signed and executed in accord with legal requirements
a judicial certificate saying that a will is genuine and conferring on the executors the power to administer the estate

probate (verb)	hold over (verb)
establish the legal validity of (wills and other documents)	intimidate somebody (with a threat)
put a convicted person on probation by suspending his sentence	hold over goods to be sold for the next season
	keep in a position or state from an earlier period of time
	continue a term of office past the normal period of time
	hold back to a later time