σεισοπύγιον
From LSJ
ταῦτα δὲ ἔδει ποιῆσαι κἀκεῖνα μὴ ἀφιέναι → these things should have been done without neglecting the others | these are the things you should have done without neglecting the others | these ought ye to have done, and not to leave the other undone
Greek Monolingual
τὸ, ΜΑ σεισοπυγίς
(υποκορ. τ.) μικρή σεισοπυγίδα.