a. [ad. L. acheronticus adj. f. Acheron, -ontem.] Of or belonging to Acheron, infernal; hence, dark, gloomy; also, waiting to cross the river of death, tottering on the brink of the grave, moribund.
1600. Tourneur, Metamorph., xviii. 121. To shrowde her safe from Acheronticke mistes.
1621. Burton, Anat. Mel., III. iii. IV. ii. (1676), 379/2. An old acherontic dizzard, that hath one foot in the grave.
1860. All Y. Round, No. 43. 404. At night they [owls] fill these Acherontic woods with demon hooting.
