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

primarily signifies "to make a distinction," hence, "to decide, especially judically, to decide a dispute, to give judgment," 1—Corinthians 6:5 , AV, "judge;" RV, "decide," where church members are warned against procuring decisions by litigation in the world's law courts. See CONTEND.

B — 1: διάγνωσις
(Strong's #1233 — Noun Feminine — diagnosis — dee-ag'-no-sis )

transliterated in English, primarily denotes "a discrimination" (dia, "apart," ginosko, "to know"), hence, "a judicial decision," which is its meaning in Acts 25:21 , RV, "for the decision of the Emperor" (AV, "hearing").

Acts 23:15Acts 24:22
B — 2: διάκρισις
(Strong's #1253 — Noun Feminine — diakrisis — dee-ak'-ree-sis )

"a distinguishing," and so "a decision" (see A), signifies "discerning" in 1—Corinthians 12:10; Hebrews 5:14 , lit., "unto a discerning of good and evil" (translated "to discern"); in Romans 14:1 , "not to (doubtful) disputations" is more literally rendered in the margin "not for decisions (of doubts)." See DISCERN. Cp. JUDGE. In the Sept., Job 37:16 .