μονόστιχος
From LSJ
ἀσκεῖν περὶ τὰ νοσήματα δύο, ὠφελεῖν ἢ μὴ βλάπτειν → strive, with regard to diseases, for two things — to do good, or to do no harm | as to diseases, make a habit of two things — to help, or at least, to do no harm
English (LSJ)
ον,
A consisting of one verse, ἐπίγραμμα AP11.312 (Lucill.), Luc.Demon.44; μονόστιχα single verses, Plu.Pomp.27.