Abbott-Smith Manual Greek Lexicon
ὀρεινός (G3714)
2 ὀρεινός (WH, ὀριν- ; v. MM, xviii,) -ή, -όν ( ὄρος ), mountainous , hilly ; ἡ ὀ. (sc. χώρα ), the hill-country (LXX for הַר ): Lk 1:39 , 65 .†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain