FROM STRONG’S GREEK DICTIONARY (1890)

Strong’s Greek Dictionary (1890) — public domain, printed whole.

asteriktos ἀστήρικτος — as-tay'-rik-tos — from 1 (as a negative particle) and a presumed derivative of 4741; unfixed, i.e. (figuratively) vacillating:--unstable.

see GREEK for 1

see GREEK for 4741