[ 'sɪzɪdʒi ]
■ noun ( plural syzygies )
1》 Astronomy conjunction or opposition, especially of the moon with the sun.
2》 a pair of connected or corresponding things.
Origin
C17: via late L. from Gk suzugia , from suzugos 'yoked, paired', from sun- 'with, together' + the stem of zeugnunai 'to yoke'.