What is a synonym for "portmantologism"?

Common synonyms include: blend, hybrid, portmanteau word.

Portmantologism

noun

noun ·Rare ·Advanced level

Noun

1
A portmanteau word.
"The term “biomarker” is a portmantologism of the words “biological” and “marker.”"

"The term “biomarker” is a portmantologism of the words “biological” and “marker.”"

From portmanteau + -ology + -ism.