seˈstēnə noun
( -s )
Etymology: Italian, from Old Italian, from sesto sixth
: a lyrical form developed before 1200 by Provençal troubadours and now fixed in the form of six 6-line stanzas originally unrhymed, six end words repeated in different order in each stanza, and a 3-line envoi in which three of these six words occur in the middle and three at the end of the lines