Earing vs Oaring - What's the difference?

As a noun earing

is (nautical) a line used to fasten the upper corners of a sail to the yard or gaff; also called head earing.

(en noun)

(nautical) A line used to fasten the upper corners of a sail to the yard or gaff; also called head earing.

(nautical) A line for hauling the reef cringle to the yard; also called reef earing.

(nautical) A line fastening the corners of an awning to the rigging or stanchions.

(archaic) A ploughing of land.

* Bible , Genesis xlv. 6.

Neither earing nor harvest.

* * * *

(head)