IPA: /ˈwɛərɪŋli/
KK: /ˈwɛrɪŋli/
In a way that causes tiredness or fatigue.
She spoke wearisomely, making everyone feel exhausted.
Wearingly → It is formed from "wear" (from Old English *werian*, meaning to carry or to endure) and the suffix "-ly" (meaning in a manner of). The word "wearingly" means in a manner that causes weariness or fatigue.
Think of the word 'wear' which relates to carrying or enduring something, and remember that 'wearingly' describes doing something in a way that makes you feel tired.