crackle (v.)youdaoicibaDictYouDict
mid-15c., crackelen, frequentative of cracken "to crack" (see crack (v.)). Related: Crackled; crackling. The noun is recorded from 1833.
crepitateyoudaoicibaDictYouDict
"Make a crackling sound", Early 17th century (in the sense 'break wind'): from Latin crepitat- 'crackled, rustled', from the verb crepitare, from crepare 'to rattle'.