What part of speech is defalcate?

Defalcate can be categorized as a verb.

Parts of speech

1. defalcate is a verb, present, 1st person singular of defalcate (infinitive).
2. defalcate is a verb (infinitive).

Verb
defalcate - appropriate (as property entrusted to one's care) fraudulently to one's own use; "The accountant embezzled thousands of dollars while working for the wealthy family"