Webster's Revised Unabridged Dictionary · 1913

Octameter

Octameter , noun

[CompareL. octameter in eight feet. See Octa-, and meter.]

(Prosody) A verse containing eight feet; as, --

Deepb in|tob the | darkbness | peerbing, | longb I | stoodb there | wond'bring, | fearbing.
Deepb in|tob the | darkbness | peerbing, | longb I | stoodb there | wond'bring, | fearbing. — Poe