67. If the meaning of a word is such that it can have a direct opposite,
such opposite may be formed from it by use of the prefix "mal-":
malalta = low, short (from "alta", high, tall).
malamiko = enemy (from "amiko", friend).
maldekstra = left (from "dekstra", right).
malhelpi = to hinder (from "helpi", to help).
maljuna = aged, old (from "juna", young).
malnova = old, not new (from "nova", new).
[Footnote: Cf. English "malcontent", "discontented," "maladroit",
"clumsy."]