nugacitas
From LSJ
αὐτῇ τῇ ψυχῇ αὐτὴν τὴν ψυχὴν θεωροῦντα ἐξαίφνης ἀποθανόντος ἑκάστου → beholding with very soul the very soul of each immediately upon his death
nūgācĭtas: ātis, f. nugae,
I a trifling playfulness, drollery (late Lat.), Aug. Ep. 67; id. de Musica, 6 init.