English
ferruginously
From ferruginous + -ly.
Formed from ferruginous + -ly
Old Latin *fersom
Latin ferrum ‘iron’
Latin ferrūgo ‘rust’
Latin ferrūgineus ‘of a dark color unrelated to iron rust, dark…’
English ferruginous
Today it means
adv In a ferruginous manner.
Language periods are conventional ranges, not dates for this word.
Etymograph / ferruginously