Strong's #3714: oreinos (pronounced or-i-nos)
from 3735; mountainous, i.e. (feminine by implication, of 5561) the Highlands (of Judaea):--hill country.
Thayer's Greek Lexicon:
̓́
oreinos
1) mountainous, hilly
2) the mountain district, hill country
Part of Speech: adjective
Relation: from G3735
Usage:
This word is used 2 times:
Luke 1:39: "and went into the hill country with haste, into a city"
Luke 1:65: "throughout all the hill country of Judea."