IPA: //ˈskeɪpɡreɪs//
KK: /ˈskeɪpˌɡreɪs/
A person who behaves badly but often in a playful or amusing way; a mischievous rascal.
Despite his reputation as a scapegrace, everyone loved his charming personality.
Scapegrace is formed from "scape" (from Old English *sceapan*, meaning to escape or to shape) and "grace" (from Latin *gratia*, meaning favor or goodwill). The term originally referred to someone who has escaped from grace or favor, often implying a mischievous or reckless person.
Think of someone who has 'escaped' ('scape') from 'favor' ('grace') — that's why a scapegrace is often seen as a mischievous or reckless individual.
No commonly confused words.