ὁλοστρόγγυλος
From LSJ
ἐν ταῖς ἀνάγκαις χρημάτων κρείττων φίλος → it is better in times of need to have friends rather than money, a friend in need is a friend indeed (Menander, Sententiae monostichoi 143)
English (LSJ)
ον,
A entirely round, Sch.Opp.H.2.370.
Greek (Liddell-Scott)
ὁλοστρόγγυλος: -ον, ὡς καὶ νῦν, ὅλως στρογγύλος, Σχόλ. εἰς Ὀππ. Ἁλ. 2. 370.