Defn: Imbecility; total want of understanding.

AMENTIFEROUS
Am`en*tif"er*ous, a. Etym: [L. amentum + -ferous.] (Bot.)

Defn: Bearing catkins. Balfour.

AMENTIFORM
A*men"ti*form, a. Etym: [L. amentum + -form.] (Bot.)

Defn: Shaped like a catkin.

AMENTUM
A*men"tum, n.; pl. Amenta.

Defn: Same as Ament.

AMENUSE
Am"e*nuse, v. t. Etym: [OF. amenuisier. See Minute.]

Defn: To lessen. [Obs.] Chaucer.

AMERCE
A*merce", v. t. [imp. & p. p. Amerced; p. pr. & vb. n. Amercing.]
Etym: [OF. amercier, fr. a merci at the mercy of, liable to a
punishment. See Mercy.]