Rubaiyat
Pronunciation : Ru*bai*yat", n. pl.; sing. Rubai. [Ar. ruba'iyah quatrian, pl. of ruba'iy having four radicals
Part of Speech : fr.
Definition : Defn: Quatrians; as, the Rubaiyat of Omar Khayyam. Sometimes in pl. construed as sing., a poem in such stanzas.
ruba' four.]
Source : Webster's Unabridged Dictionary, 1913