Cyclopedia of Biblical, Theological and Ecclesiastical Literature
(Heb. (Yaddav', יִדִּו, probably by erroneous transcription for יַדּוֹ, Yiddo'; "Iddo;" rather than for יִדִּי, Yadday', id., as in the margin; Sept. Ι᾿αδαϊ v v. r. Ἀδιά, Vulg. Jetdd), one of the "sons" of Nebo who divorced their Gentile wives after the Exile (Ezra 10:43). B.C. 459.
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McClintock, John. Strong, James. Entry for 'Jadau'. Cyclopedia of Biblical, Theological and Ecclesiastical Literature. https://www.studylight.org/encyclopedias/eng/tce/j/jadau.html. Harper & Brothers. New York. 1870.