Strong's #366: 'ayom (pronounced aw-yome')

from an unused root (meaning to frighten); frightful:--terrible.

Brown-Driver-Briggs Hebrew Lexicon:

'âyôm

1) terrible, dreadful

Part of Speech: adjective

Relation: from an unused root (meaning to frighten)

Usage:

This word is used 3 times:

 

Song of Solomon 6:4: "as Tirzah, comely as Jerusalem, terrible as an army with banners."
Song of Solomon 6:10: "as the moon, as the sun, and terrible as an army with banners?"
Habakkuk 1:7: "They are terrible and dreadful: their judgment and their dignity shall proceed"