The difference between Amass and Apportion

When used as verbs, amass means to collect into a mass or heap, whereas apportion means to divide and distribute portions of a whole.

Amass is also noun with the meaning: a mass.

check bellow for the other definitions of Amass and Apportion

Amass as a verb (transitive):

To collect into a mass or heap
Amass as a verb (transitive):

to gather a great quantity of; to accumulate.

Examples:

"to amass a treasure or a fortune"

"to amass words or phrases"

Amass as a noun (obsolete):

A mass; a heap.

Examples:

"rfquotek Sir H. Wotton"

Apportion as a verb (transitive):

To divide and distribute portions of a whole.

Examples:

"The controlling party had apportioned the voting districts such that their party would be favored in the next election."
Apportion as a verb (transitive):

Specifically, to do so in a fair and equitable manner; to allocate proportionally.

Examples:

"The children were required to dump all of their Halloween candy on the table so that their parents could apportion it among them."