IPA: /ɛˈseɪər/
KK: /ɛsˈeɪər/
A person who tries or tests something, often in a creative or experimental way.
The essayer conducted various experiments to find the best solution.
Essayer is derived from the Old French verb 'essayer', which means to try or to attempt. The root 'essai' (meaning trial or attempt) is also present, indicating the action of trying something out. Thus, 'essayer' means to attempt or to try.
Think of 'essai' meaning a trial or attempt — that's why 'essayer' means to try something.