rhubarb

From Middle English rubarbe, from Anglo-Norman reubarbe (modern French rhubarbe), from Late Latin reubarbarum, rheubarbarum, rubarbera, rybarba, probably from Koine Greek ῥῆον βαρβαρικόν (rhêon barbarikón), from ῥῆον (rhêon, “rhubarb”) + Ancient Greek βαρβαρικόν (barbarikón), neuter of βαρβαρικός (barbarikós, “foreign; barbaric”) (English barbaric).

There is also a Medieval Latin variant rabarbarum, which appears to be influenced by Ancient Greek ῥᾶ (rhâ, “rhubarb”), and gave rise to some of the forms in modern languages. The Ancient Greek variant term appears to have been folk-etymologically influenced by Ancient Greek Ῥᾶ (Rhâ, “the River Volga”), which is in the region from which the plant came to the Mediterranean. The ultimate origin of the Ancient Greek terms is, however, Proto-Iranian *(h)rabā́š (“rhubarb, fennel”).

The word is cognate with Catalan ruibarbre, Italian rabarbaro, Dutch rabarber, German Rhabarber, Old Occitan reubarbe, Portuguese ruibarbo, Spanish ruibarbo.

Attributed to the circa 1852 practice by the theatre company of English actor Charles Kean (1811–1868) at the Princess’s Theatre, London, of actors saying the word rhubarb repetitively to mimic the sound of indistinct conversation, the word having been chosen because it does not have harsh-sounding consonants or clear vowels.

The baseball senses are said to have been coined by the American sports writer Garry Schumacher and popularized by the American baseball commentator Red Barber (1908–1992). Barber also claimed to have started using the word in the 1940s, based on the practice in “early radio dramas” (presumably in the US, circa 1930) of actors repetitively voicing rhubarb. However, unlike the UK usage, he felt the practice applied to muttering by an angry mob, and so applied the word to arguments on the baseball field where he could not distinguish the words.