IPA: /ɪkˈstoʊlər/
KK: /ɪkˈstoʊlər/
A person who praises or speaks highly of someone or something.
The extoller of the artist's work highlighted her unique style and creativity.
Extoller is formed from "ex-" (meaning out of or from) and "tollere" (meaning to lift or raise). The word describes someone who raises or lifts up in praise or admiration.
Think of someone who 'lifts up' ('tollere') praise 'out of' ('ex-') their heart — that's what extoller means.