lygos
From LSJ
Ἐφόδιον εἰς τὸ γῆρας αἰεὶ κατατίθου → Bonum senectae compara viaticum → Wegzehrung für das Alter sorge stets dir vor
lygos: i, f., = λύγος,
I a plant, the chaste tree, agnus castus, Abraham's balm (in late Lat. vitex), Plin. 24, 9, 38, § 59.