A “tritina” style of poem is a contraction of the sestina to three stanzas of three lines (tercets), with a one-line envoy. The order of the line-ending words follows the same pattern as that of the sestina, so that they appear: 123, 312, 231 with the envoy as 123.
That night was impolite,
for it led to thinking in a manner,knotted
for my thoughts were the night’s colour, livid.