Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
† 1. zygĭa, ae, f., = ζυγία (prop. an adj. from ζύγιος, belonging to or fit for yokes).
2. Zygia, ae, f., a name of Juno, as the goddess of marriage, App. M. 6, p. 174, 38.