paronomasia
From LSJ
Λύπης ἰατρός ἐστιν ἀνθρώποις λόγος – For men reason is a healer of grief – Für Menschen ist der Trauer Arzt allein das Wort – Maeroris unica medicina oratio.
Latin > English (Lewis & Short)
părŏnŏmăsĭa: ae, f., = παρονομασία>,
I a figure of speech (pure Lat. agnominatio), Rutil. Lup. 1, 3, p. 11 Ruhnk.