Definitions
1.verbTo hark back, to return or revert (to a subject, etc.), to allude to, to evoke, to long or pine for (a past event or era).
2.nounThe act of one who harkens or listens.
3.verb(obsolete except poetic) To hear (something) with attention; to have regard to (something).
4.verbTo listen; to attend or give heed to what is uttered; to hear with attention, compliance, or obedience.
5.verbTo enquire; to seek information.