βολίστρα

From LSJ

θεοῦ θέλοντος κἂν ἐπὶ ῥιπὸς πλέοις → if God willed it, you could sail even on a straw mat | God willing, you may voyage on a mat

Source

Spanish (DGE)

-ας, ἡ catapulta Steph.in Hp.Progn.206.11.