Webster’s Revised Unabridged Dictionary · 1913
Asper
As′per (ăs′pẽr), a. [OE. aspre, OF. aspre, F. âpre, fr. L. asper rough.] Rough; rugged; harsh; bitter; stern; fierce. [Archaic] "An asper sound." Bacon.
As′per (ăs′pẽr), n. [L. spiritus asper rough breathing.] (Greek Gram.) The rough breathing; a mark (̔) placed over an initial vowel sound or over ρ to show that it is aspirated, that is, pronounced with h before it; thus ὡς, pronounced hōs, ρἥτωρ, pronounced hrā′tōr.
As′per, n. [F. aspre or It. aspro, fr. MGr. ἄσπρον, ἄσπρος, white (prob. from the whiteness of new silver coins).] A Turkish money of account (formerly a coin), of little value; the 120th part of a piaster.