IPA: /ˈɑːrdəntli/
KK: /ˈɑrdəntli/
In a passionate or enthusiastic manner.
She ardently supports her favorite team during every game.
Ardently is derived from "ardens" (from Latin, meaning burning) and the suffix "-ly" (meaning in a manner of). The word describes doing something in a burning or passionate manner.
Think of 'burning' ('ardens') to remember that 'ardently' means doing something with intense passion.