filicology
The botanical study of ferns.
rare, uncountable
‡ Filicology.—That part of Botany which treats of Ferns.
Where it comes from
From Latin filic- (stem of filix (“fern”)) + English -ology (a variant of -logy (suffix denoting the study of a particular subject)). Filix is probably derived from Proto-Indo-European *bʰel- (“henbane”) + Latin -ix (a variant of -ex (suffix found in plant names such as cārex (“sedge”) and rumex (“sorrel”))).
Adapted from the Wiktionary entry filicology (CC BY-SA 4.0).