Strong's G840 — αὐστηρός (adjective)
austeros (au-stay-ros') adj.
1. rough (properly as a gale)
2. (figuratively) severe
[from a (presumed) derivative of the same as G109 (meaning blown)]
KJV: austere 
Root(s): G109 
Hebrew root: ἀήρ
Occurrences: 2