The verb extol means to praise something or someone highly.
Synonyms are acclaim, applaud, celebrate, or glorify.
The word origins from Latin (1400) extollere meaning “to place on high, raise, elevate”. It comes from ex meaning “up” plus tollere meaning “to raise”. In English, the figurative sense of “praise highly” is first attested from 1500s.
He wrote a book to extol the benefits of vegetarianism.
She will always extol the virtues of her mother.
Helen did not extol her sister’s achievement because of jealousy.