scathe vs harm

scathe and harm both are nouns.

Word	Noun	Adjective	Verb	Adverb
scathe	Yes	No	No	No
harm	Yes	No	Yes	No

As nouns, scathe and harm are synonyms defined as:

Other synonyms of scathe include damage, hurt.

scathe (noun)	harm (noun)
the act of damaging something or someone	the act of damaging something or someone
	the occurrence of a change for the worse
	any physical damage to the body caused by violence or accident or fracture etc.; the condition of an injury

scathe (verb)	harm (verb)
	cause or do harm to