παννυχίζω
From LSJ
ἐφ' ἁρμαμαξῶν μαλθακῶς κατακείμενοι → reclining softly on litters, reclining luxuriously in covered carriages
English (LSJ)
(παννυχίς)
A celebrate a night-festival, keep vigil, Sapph.Supp.17.3, etc.; τῇ θεᾷ Ar.Ra.448; π. περὶ τὰ ἀγάλματα Timae.127; π. ἑορτήν Hdn.1.17.6, etc.:—Med., Luc.DMeretr.14.1. II generally, do anything the livelong night, φλὸξ συνεχὲς π. it lasts all night long, Pi.I.4(3).65; παννυχίζων all night long, Ar.Fr.695 (lyr.): c. acc., π. τὴν νύκτα spend the livelong night, Id.Nu.1069.