Concise Bible Dictionary:
1. en mispar, “no number:” only applied to the understanding of the Lord (Psa. 147:5).
2. en gets, “no end.” Eliphaz, quite unintelligent as to Job’s case, said there was “no end” of his iniquities (Job 22:5). There was “no end” to the strength of Ethiopia and Egypt in supporting the city No; yet it was carried away: so would God’s judgments fall upon Nineveh (Nah. 3:8-9).