IPA: /ɪmˈpɑːrtmənt/
KK: /ɪmˈpɑrtmənt/
The action of giving or sharing information, knowledge, or something valuable to someone else.
The teacher's impartment of knowledge helped the students succeed.
Impartment is formed from "im-" (meaning into) and "part" (from Latin "partiri", meaning to divide or share) and the suffix "-ment" (indicating the action or result of a process). The word refers to the act of sharing or giving something into another's possession.
Think of 'sharing' ('part') something 'into' ('im-') someone else's hands, which is what impartment means.