Strong's #6620: pethen (pronounced peh'-then)

from an unused root meaning to twist; an asp (from its contortions):--adder.

Brown-Driver-Briggs Hebrew Lexicon:

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pethen

1) a snake, venomous serpent

1a) perhaps the cobra, adder, or viper

Part of Speech: noun masculine

Relation: from an unused root meaning to twist

Usage:

This word is used 6 times:

 

Deuteronomy 32:33: "of dragons, and the cruel venom of asps."
Job 20:14: "in his bowels is turned, it is the gall of asps within"
Job 20:16: "He shall suck the poison of asps: the viper's tongue shall slay"
Psalms 58:4: "of a serpent: they are like the deaf adder that stoppeth her ear;"
Psalms 91:13: "Thou shalt tread upon the lion and adder: the young lion and the dragon shalt thou trample under feet"
Isaiah 11:8: "child shall play on the hole of the asp, and the weaned child shall put his hand on"