Latin

Noun

reubarbarum n ‎(genitive reubarbari); second declension

1. rhubarb
   • Reubarbarum sive reuponticum, illud quod trans Danubium in solo barbarico, istud quod circa Pontum colligitur, nominatum. Reu autem dictum quod sit radix, quasi radix barbara, quasi radix Pontica. Isidorus Sevillensis

References

• REUBARBARUM in Charles du Fresne du Cange’s Glossarium Mediæ et Infimæ Latinitatis (augmented edition, 1883–1887)