English
lunatically
From lunatic + -ally.
Formed from lunatic + -ally
Proto-Indo-European *lewk- ‘bright’
…
Latin luna ‘moon’
Late Latin lunaticus ‘moonstruck’
Old French lunatique
Middle English lunatik ‘suffering from madness due to varying lunar…’
English lunatic
Today it means
adv In a lunatic or lunatical manner; crazily.
Language periods are conventional ranges, not dates for this word.
Etymograph / lunatically