Soqotri

ḳédem - 1. to be ahead; 2. to block the way; 3. to lie in wait, in ambush (LS 367; CSOL I 585; Naumkin et al. 2015a:74; Naumkin et al. 2022:254)

PS
*ḳdm - to be in front, to precede (DUL 694, CDG 421, Tropper 2000:769)