Kata bahasa Indonesia
English word
CIDE DICTIONARY
peperino, n. [It. peperino, L. piper pepper. So called on account of its color.].
A volcanic rock, formed by the cementing together of sand, scoria, cinders, etc. [1913 Webster]
OXFORD DICTIONARY
peperino, n. a light porous (esp. brown) volcanic rock formed of small grains of sand, cinders, etc.
Etymology
It. f. pepere pepper