Lewis & Short

ex-sĭnŭo, āvi, ātum, 1, v. a., to unfold, spread out, extend (post-class.): amictus, Aus. Idyll. 14, 21: velum in contos suos, Paul. Nol. Ep. 49, 3: seriem laterum, Prud. στεφ. 11, 221.