ἐξηγητικός
From LSJ
ἀναγκαιότεραι μὲν οὖν πᾶσαι ταύτης, ἀμείνων δ᾽ οὐδεμία → accordingly, although all other sciences are more necessary than this, none is more excellent (Aristotle, Metaphysics A 983a10)
English (LSJ)
ή, όν,
A of or for narrative, Diom. p.428K.: Comp. Adv. -ώτερον Antig.Mir.60. 2 explanatory, Hermog.Id.1.6, Alex. Aphr. in Metaph.358.13, S.E. M.9.132, etc. Adv. -κῶς ib.7.28. II ἐξηγητικά (sc. βιβλία), τά, title of work on religious rites by Anticlides, Plu.Nic.23: -κόν, τό, work by Timosthenes, Sch.A.R.3.847.