A — 1: ἀκλινής
(Strong's #186 — Adjective — aklines — ak-lee-nace' )

"without bending" (a, negative, klino, "to bend"), occurs in Hebrews 10:23 , AV, "without wavering," RV, "that it waver not."

B — 1: διακρίνω
(Strong's #1252 — Verb — diakrino — dee-ak-ree'-no )

is rendered "to waver" in Romans 4:20 , RV (AV, "staggered"); in James 1:6 (twice). See DOUBT , No. 3.