schieflachen (German) comes from German schief, from Middle High German schief, from Middle Low German schêf, from Old Saxon skêf, from Proto-West Germanic *skaib, from Proto-Germanic skaibaz, from Proto-Indo-European skeh₂iwo-.
schieflachen (German): to crack up, to laugh one's head off
Definitions
to crack up, to laugh one's head off
Ancestry of “schieflachen”, step by step
schieflachen traces back through two separate lines of ancestry.