eat on vs eat

eat on and eat both are verbs.

Word	Noun	Adjective	Verb	Adverb
eat on	No	No	Yes	No
eat	No	No	Yes	No

As verbs, eat on and eat are synonyms defined as:

eat on (verb)	eat (verb)
worry or cause anxiety in a persistent way	cause to deteriorate due to the action of water, air, or an acid
	take in solid food
	eat a meal; take a meal
	take in food; used of animals only
	use up (resources or materials)
	worry or cause anxiety in a persistent way