ἐνδιπλασιάζομαι
From LSJ
δειναὶ δ' ἅμ' ἕπονται κῆρες ἀναπλάκητοι → and after him come dread spirits of death that never miss their mark
Spanish (DGE)
1 medic. desdoblarse, de la respiración hacerse entrecortada o acelerada πνεῦμα ἐνεδιπλασιάζετο Hp.Epid.2.2.22.
2 gram. reduplicarse τὸ ῥῆμα EM 499.11G.