A*ghast" (&?;), a. & p. p. [OE. agast, agasted, p. p. of agasten to terrify, fr. AS. pref. - (cf. Goth. us-, G. er-, orig. meaning out) + g&?;stan to terrify, torment: cf. Goth. usgaisjan to terrify, primitively to fix, to root to the spot with terror; akin to L. haerere to stick fast, cling. See Gaze, Hesitate.] Terrified; struck with amazement; showing signs of terror or horror.
Aghast he waked; and, starting from his bed,
Cold sweat in clammy drops his limbs o'erspread.
Dryden.
The commissioners read and stood aghast.
Macaulay.
Ag"i*ble (&?;), a. [Cf. LL. agibilis, fr. L. agere to move, do.] Possible to be done; practicable. [Obs.] "Fit for agible things." Sir A. Sherley.
Ag"ile (&?;), a. [F. agile, L. agilis, fr. agere to move. See Agent.] Having the faculty of quick motion in the limbs; apt or ready to move; nimble; active; as, an agile boy; an agile tongue.
Shaking it with agile hand.
Cowper.
Syn. -- Active; alert; nimble; brisk; lively; quick.
Ag"ile*ly, adv. In an agile manner; nimbly.