reubarbarum

Etymology
Probably from, from , neuter of.

Noun

 * 1) rhubarb
 * 2) * 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