scrimshank vs fiddle

scrimshank is not a noun while fiddle is a noun.

Word	Noun	Adjective	Verb	Adverb
scrimshank	No	No	Yes	No
fiddle	Yes	No	Yes	No

As verbs, fiddle is a hypernym of scrimshank; that is, fiddle is a word with a broader meaning than scrimshank:

Other hypernyms of scrimshank include goldbrick, shirk, shrink from.

scrimshank (noun)	fiddle (noun)
	bowed stringed instrument that is the highest member of the violin family; this instrument has four strings and a hollow body and an unfretted fingerboard and is played with a bow

scrimshank (verb)	fiddle (verb)
avoid work	try to fix or mend
	manipulate manually or in one's mind or imagination
	play around with or alter or falsify, usually secretively or dishonestly
	play the violin or fiddle
	play on a violin
	commit fraud and steal from one's employer
	avoid (one's assigned duties)