ogdoad

== English == === Etymology === From Ancient Greek ὀγδοάς (ogdoás, “eight, a group of eight”). By surface analysis, ogdo- +‎ -ad. === Pronunciation === IPA(key): /ˈɒɡ.dəʊ.æd/ === Noun === ogdoad (plural ogdoads) A thing made up of eight parts. Synonyms: octet, ogdoas === References === “ogdoad”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.