IPA: /ˈpɜː.pəsɪvli/
KK: /ˈpɜr.pə.sɪv.li/
In a way that is intentional and done with a specific purpose in mind.
She acted purposively to achieve her goals.
Purposively → It is formed from "purpose" (from Old French *porpos*, meaning intention or aim) and the suffix "-ively" (meaning in a manner of). The word "purposively" means in a manner that is intentional or aimed at a specific goal.
Think of having a clear 'intention' ('purpose') and doing something 'in that manner' ('-ively') — that's why purposively means acting with intention.