אָחַר ʼâchar (H309)

to loiter (i.e. be behind); by implication to procrastinate

1) to delay, hesitate, tarry, defer, remain behind 1a) (Qal) 1a1) to delay, tarry (intensive) 1a2) to cause one to delay, hinder, keep back 1b) (Piel) to delay, wait, stay behind (but not in hope)

a primitive root;