ἰδιόγραφος

ον, Subst., τό
A. written with one's own hand, autograph, liber Vergilii, Gell. 9.14.7, cf. POxy. 250.13 (i A.D.), etc.:—Subst. ‐γραφον,τό, autograph, PFlor. 27.13 (iv A.D.), etc.
2. specially or separately written, ψαλμὸς ἰ. εἰς Δαυίδ LXX Ps. 151 tit.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
An open-access project