OCTOGAMY
Oc*tog"a*my, n. Etym: [Octo- + Gr.
Defn: A marrying eight times. [R.] Chaucer.
OCTOGENARIAN
Oc`to*ge*na"ri*an, n.
Defn: A person eighty years, or more, of age.
OCTOGENARY Oc*tog"e*na*ry, a. Etym: [L. octogenarrus, from octogeni eighty each, octoginta eighty, fr. octo eight. See Eight, Eighty.]
Defn: Of eighty years of age. "Being then octogenary." Aubrey.
OCTOGILD
Oc"to*gild, n. Etym: [Octo- + AS. gild payment.] (Anglo-Saxon Law)
Defn: A pecuniary compensation for an injury, of eight times the value of the thing.
OCTOGONAL
Oc*tog"o*nal, a.
Defn: See Octagonal. [Obs.]