βαυκάλησις
From LSJ
κάλλιστον ἐφόδιον τῷ γήρᾳ ἡ παιδεία (Aristotle, quoted by Diogenes Laertius 5.21) → the finest provision for old age is education
English (LSJ)
εως, ἡ, lulling a child to sleep, Ruf. ap. Orib.inc.20.26, Crat.Ep.33.
Spanish (DGE)
-εως, ἡ
arrullo, acción de cantar a un niño para dormirlo, Ruf. en Orib.Inc.38.26.