Difference between Hark and Harken

HARK vs HARKEN: VERB

To hearken.
Listen; used mostly in the imperative
Alternative spelling of hearken ‘to listen, hear, regard’, more common form in the US.
To 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).

To go back for a fresh start, as when one has wandered from his direct course, or made a digression.
Cries used to incite and guide hounds in hunting.
To listen; to hearken.
To listen attentively.

To hear; listen to.
To listen; harken: now chiefly used in the imperative, as an incitement to attention or action, as in hunting. See phrases below.
Listen
Used mostly in the imperative

To listen; lend the ear; attend or give heed to what is uttered; hear with attention, obedience, or compliance.
To hear by listening.
To hear with attention; regard.
Listen
Used mostly in the imperative

Heyday, Remember, Olden, Reminisce, Evoke, Echo, Reminiscent, Yesteryear, Bygone, Yore, Oyez, Listen, Look, Harken, Hearken

Olden, Echo, Predate, Relive, Fondly, Reminisce, Yesteryear, Reminiscent, Evoke, Throwback, Bygone, Yore, Listen, Hearken, Hark

Resonate, Relive, Heyday, Remember, Olden, Reminisce, Evoke, Echo, Reminiscent, Yesteryear, Bygone, Yore, Listen, Look, Harken

Recreate, Olden, Echo, Predate, Relive, Fondly, Reminisce, Yesteryear, Reminiscent, Evoke, Throwback, Bygone, Yore, Listen, Hark

Hark, they assemble, These fiends of the night!
Hark the voice of Lord Calling you home.
Hark to the sound of many marching feet!
Hark, how our steeds for present service neigh!
Learn Joy to the World chords, alongside Hark!
HARK now, what light through yonder window breaks?
Hark, what kind of new spam is this?
My favorite is Hark The Herald Angels Sing.
Hark at him, go on, hark at him.
Hark The Herald Angels Sing, King Of Heaven Lyrics by Paul Baloche Hark the herald angels sing Gl.

Just remember that, no matter the idea, it must harken back to your thesis statement.
Snowflake Rosette Iron will surely harken many memories back to these traditional cookies.
Tony Boy served lunch with flavors that harken to his boyhood home.
These bars, restaurant, and stalls harken to a previous era of Tokyo.
We stock the best from industry leading brands Harken, Ronstan and more.
Santa harken back to Odin and his carriage of magic goats?
Cleveland JC Jr, Meldrum DR, Cain BS, Banerjee A, Harken AH.
Their early songs harken back to British folk song models.
Its amazing how often I harken back to those classes.
Incidentally, Harken is such a large part of sailors lives I have a Dog named Harken.