clapless (English) comes from English clap, from Old French clapoir, from Old French clapier, from Old Occitan clapier, from Old Occitan clap, from Medieval Latin claperius.
clapless (English): Without a clap or applause
Definitions
Without a clap or applause
Ancestry of “clapless”, step by step
clapless traces back through two separate lines of ancestry.