While searching for hadal, I noticed this:
Date: Thu Dec 3 00:04:22 EST 1998
Subject: A.Word.A.Day--syzygy
X-Bonus: Life is like a dog-sled team. If you ain't the lead dog, the scenery never changes. -Lewis Grizzard

syzygy (SIZ-uh-jee) noun

1. Astronomy. Either of two points in the orbit of a celestial body where
the body is in opposition to or in conjunction with the sun. Either of
two points in the orbit of the moon when the moon lies in a straight
line with the sun and Earth. The configuration of the sun, the moon,
and Earth lying in a straight line.

2. The combining of two feet into a single metrical unit in classical
prosody.

[Late Latin syzygia, from Greek suzugia, union, from suzugos, paired : sun-,
syn- + zugon, yoke.]

Zeugma and syzygy surely share an origin: yoke? Or not?