Lewis & Short

Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.

Ăgămemnon, ŏnis, m. (nom. Agamemno, Enn. ap. Cic. Att. 13, 47; Cic. Tusc. 4, 8, 17; Stat. Achill. 1, 553), = Ἀγαμέμνων, king of Mycenœ, son of Atreus and of Aërope, brother of Menelaüs, husband of Clytœmnestra, father of Orestes, Iphigenia, and Electra, commander-in-chief of the Grecian forces before Troy, and murdered by his wife, with the aid of Ægisthus, her paramour.
Poet., for his time: vixēre fortes ante Agamemnona Multi, Hor. C. 4, 9, 25- 28.
Hence,

    1. 1. Ăgămemnŏnĭdēs, ae, patr. m., = Ἀγαμεμνονίδης, a male descendant of Agamemnon; his son Orestes: par Agamemnonidae crimen, i. e. the matricide of Orestes, Juv. 8, 215.
    2. 2. Ăgămem-nŏnĭus, a, um, adj., = Ἀγαμεμνόνιος, of or pertaining to Agamemnon (poet.): phalanges, i. e. the Grecian troops before Troy, commanded by Agamemnon, Verg. A. 6, 489: Mycenae, ruled by Agamemnon, id. ib. 6, 838: Orestes, son of Agamemnon, id. ib. 4, 471: puella, daughter of Agamemnon, i. e. Iphigenia, Prop. 5, 1, 111.