ἐργοτεχνίτης
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)
[ῑ], ου, ὁ,
A skilled craftsman, expert, Orph.Fr.180, Iamb.Myst.9.2 (pl.).
Greek (Liddell-Scott)
ἐργοτεχνίτης: -ου, ὁ, τεχνίτης ἔργων, = τεχνίτης, Ἰάμβλ. π. Μυστ. σ. 165.