Strong's #806: asphalos (pronounced as-fal-oce')

adverb from 804; securely (literally or figuratively):--assuredly, safely.

Thayer's Greek Lexicon:

̓͂

asphalōs

1) safety (so as to prevent escape), assuredly

Part of Speech: adverb

Relation: from G804

Citing in TDNT: 1:506, 87

Usage:

This word is used 3 times:

 

Mark 14:44: "is he; take him, and lead him away safely."
Acts 2:36: "the house of Israel know assuredly, that God hath made that same"
Acts 16:23: "jailer to keep them safely:"