Where does “antidumpin” come from?

antidumpin (Spanish) comes from English antidumping, from English dumping, from English dump, from Middle English dumpen, from Old Norse dumpa — to thump.

Ancestry of “antidumpin”, step by step

StepLanguageWordMeaning
1EnglishantidumpingIntended to combat or prevent dumping, the sale...
2Englishdumpingpresent participle of dump; The disposal of...
3EnglishdumpA place where waste or garbage is left; a ground...
4Middle Englishdumpen
5Old Norsedumpato thump
Every word from Old Norse dumpa