μενετέος

From LSJ

λόγῳ ἀναλίσκω τὸν χρόνον τῆς ἡμέρας → waste the day in idle talk, consume the duration of the day with talk

Source

French (Bailly abrégé)

α, ον :
adj. verb. de μένω.

Middle Liddell

μενετέος, ον verb. adj.]
one must remain, Plat., Xen.