Vincent's NT Word Studies
11. Understandeth (suniwn). See on foolish, ch. i. 21.Seeketh after (ekzhtwn). Lit., seeketh out. See on 1 Pet. i. 10.
Robertson's NT Word Studies
3:11 {That understandeth} (suniwn). Present active participle of suniw, late omega form of -mi verb suniemi, to send together, to grasp, to comprehend. Some MSS. have the article ho before it as before ekzˆt"n (seeking out).