Meaning

noun delicacy that is highly dangerous because of a potent nerve poison in ovaries and liver

noun any of numerous marine fishes whose elongated spiny body can inflate itself with water or air to form a globe; several species contain a potent nerve poison; closely related to spiny puffers

originEtymology tree Proto-Indo-European *bʰel- Proto-Indo-European *-eh₁- Proto-Indo-European *bʰleh₁-der. Proto-Germanic *blēaną Proto-West Germanic *blāan Old English blāwan Middle English blowen English blow Proto-Indo-European *péysks Proto-Germanic *fiskaz Proto-West Germanic *fisk Old English fisċ Middle English fisch English fish English blowfish From blow + fish.

Etymology from Wiktionary, CC BY-SA 3.0