pannychius
Could not find Pannychi in Logeion dictionaries.
Pannychi masculine genitive singular, neuter genitive singular of pannychius
pannychĭus, a, um, adj., = παννύχιος,
- that lasts all night: negotium, Marc. Aur. ap. Front. Ep. ad M. Caes. 3, 5 Mai.
pannychius, a, um (παννύχιος), die ganze Nacht dauernd, negotium, M. Aurel. bei Fronto epist. ad M. Caes. 3, 5. p. 43, 21 N.
pannўchĭus, a, um (παννύχιος), qui dure toute une nuit : M. Aur. d. Fronto Ep. ad M. Cæs. 3, 5.