A — 1: ἀπορέω
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(Strong's #639 — Verb — aporeo — ap-or-eh'-o )

is rendered "perplexed" in 2—Corinthians 4:8 , and in the most authentic mss. in Luke 24:4; see DOUBT , A, No. 1.

A — 2: διαπορέω
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(Strong's #1280 — Verb — diaporeo — dee-ap-or-eh'-o )

"was much perplexed" in Luke 9:7; see DOUBT , A, No. 2.

B — 1: ἀπορία
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(Strong's #640 — Noun Feminine — aporia — ap-or-ee'-a )

akin to A, No. 1, is translated "perplexity" in Luke 21:25 (lit., "at a loss for a way," a, negative, poros, "a way, resource"), of the distress of nations, finding no solution to their embarrassments; papyri illustrations are in the sense of being at one's wit's end, at a loss how to proceed, without resources.