Strigo, ônis. A well pight man, or well compact and strong.
Lewis and Short: Latin dictionary
strĭgo, āre, v. n. [2. strix]. I.Lit., to hold up, halt, stop in ploughing, Plin. 18, 19, 49, 177.—II.Transf.1. In gen., Sen. Ep. 31, 4.—2.Poet., to give out, give way, lose strength, sink, Verg. Cat. 8, 19.