tetrastichs

“The assonance mostly attempts monorhyme: in two tetrastichs it is aa + ba, and it does not disdain alternates, ab + ab + ab.”

The Book of The Thousand Nights And A Night

“The Murabbá, tetrastichs or four fold-song, occurs once only in The Nights”

The Book of The Thousand Nights And A Night

“The "Dittochæon", forty-nine hexameter tetrastichs commenting on various events of the Old and New Testament, must be included among the didactic poems of Prudentius.”

The Catholic Encyclopedia, Volume 12: Philip II-Reuss

“The third section is composed of the "sayings of the wise men," which are enshrined in tetrastichs or strophes of four lines, among which we find an occasional interpolation by the editor, recognisable by the paternal tone, the words "My son," and the substitution of distichs for tetrastichs.”

The Sceptics of the Old Testament: Job - Koheleth - Agur

“The Murabbá, tetrastichs or four fold-song, occurs once only in The Nights (vol.i. 98); it is a succession of double Bayts or of four lined stanzas rhyming aa + bc + dc + ec: in strict form the first three hemistichs rhyme with one another only, independently of the rest of the poem, and the fourth with that of every other stanza, e.g., aa + ab + cb + db.”

Arabian nights. English