Extended Strong's Greek Lexicon (Abbott-Smith based)
be perplexed
Usage: δι-απορέω, -ῶ [in Sm.: Psa.77:5, Dan.2:1 * ;] to be quite at a loss, be in great perplexity: absol., Act.2:12; before διὰ τό, with inf., Luk.9:7; περί, Act.5:24; ἐν ἑαυτῷ, Act.10:17.† (AS)