It can be a preposition: They work every day except Sunday.
a conjunction: I didn't tell him anything, except that I needed the money.
or a verb: He excepted from his criticism a handful of distinguished writers.
They were excepting the problem.
Romania was not a part of Soviet Union (excepting Northern Bukovina and Bassarabia).
Romania was not a part of Soviet Union (excepting Northern Bukovina and Bassarabia).
The part of speech for this particular word is a noun.
part of speech
The part of speech for "answer" is a noun.
what part of speech is beneath
adverb
Everywhere. There is no part of the body that doesn't receive blood excepting connective tissue.
The part of speech for "explicit" is an adjective.
The part of speech for "lecturer" is a noun.
The part of speech for "rapid" is an adjective.