STEP Hebrew Lexicon: אָחַר

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)

Also means: ya.char (יָחַר "to delay" H3186)