ABERRANTLY
Etymology
Adverb
aberrantly (comparative more aberrantly, superlative most aberrantly)
In an aberrant manner; abnormally. [Late 19th century.]
Source: Wiktionary
ABERRANT
Ab*er"rant, a. Etym: [L. aberrans, -rantis, p.pr. of aberrare.]
Definition: See Aberr.]
1. Wandering; straying from the right way.
2. (Biol.)
Definition: Deviating from the ordinary or natural type; exceptional;
abnormal.
The more aberrant any form is, the greater must have been the number
of connecting forms which, on my theory, have been exterminated.
Darwin.
Source: Webster’s Unabridged Dictionary 1913 Edition