IPA: /nəˈsɛsɪtəsli/
KK: /nəˈsɛsɪtəsli/
In a way that shows something is needed or required, often due to lack or hardship.
The charity provided food necessitously to those in need during the crisis.
Necessitously → It is formed from "necessitas" (from Latin, meaning necessity) and the suffix "-ously" (meaning in a manner of). The word "necessitously" means in a manner that is necessary or required.
Think of 'necessity' to remember that 'necessitously' means acting in a necessary way.