English
lacunary
From lacuna + -ary.
A compound of lacuna + -ary
Proto-Indo-European *lókus
Proto-Italic *lakus ‘lake’
Latin lacus ‘lake, pond’
Latin *lacūnus
Latin lacūna ‘a ditch, pit’
English lacuna
Today it means
adj Of, pertaining to, or having characteristics of a lacuna.
Language periods are conventional ranges, not dates for this word.
Etymograph / lacunary