IPA: /prɪˈsɪpɪtəsli/
KK: /prɪˈsɪpɪtəsli/
In a sudden and steep manner, often referring to a quick drop or change.
The temperature dropped precipitously overnight, surprising everyone.
Precipitously → It is formed from "praecipitare" (meaning to throw down) and the suffix "-ly" (meaning in a manner). The word describes an action done in a manner that is steep or sudden, akin to being thrown down.
Imagine something being 'thrown down' ('praecipitare') very steeply or suddenly — that's why 'precipitously' means in a steep or sudden manner.