Arabic

ˀḫr - II. to delay, postpone; to make smb retreat; to be late; go back (Lane 31)

intransitive II = V
Cf. ˀaḫir- - distant, remote; alienated (Lane 31), ˀāḫar- - other, another (Lane 31).

PS
*ˀḫr - to be different; to be late (DRS 15, HALOT 34‒36, Kogan 2015: 388)