IPA: /dɪˈraɪvər/
KK: /dɪˈraɪvər/
A person or thing that obtains or receives something from a source.
The scientist is a deriver of new theories from existing research.
Deriver → It is formed from "de-" (meaning down or away) and "rivus" (meaning stream or river). The word "deriver" means to draw or lead down from a source, much like how a stream flows from a river.
Think of 'drawing down' ('de-') from a 'stream' ('rivus') — that's how 'deriver' means to lead or draw from a source.