means A small bite or piece of food, or by extension any small fragment of something.

from From Old French 'morsel,' a diminutive of 'mors' meaning a bite, which traces back to Latin 'morsus,' the past participle of 'mordere,' to bite — the same root that gnaws through 'remorse' (literally a biting-back of conscience). So a morsel is, quite literally, a little bite — a cousin of every guilty pang you've ever swallowed.