Antenna

“The yard of a ship. The ships of the ancients had a single mast in the middle, and a square sail, to raise and support which a transverse pole, or yard, was extended across the mast, not far from the top. To the two extremities of the yard, ropes were attached, which passed over the top of the mast, and thus supported the yard: these ropes were called ceruchi. Sometimes the yard had two, and at other times four ceruchi, as in the annexed cut.” — Smith, 1873

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