PER'DIFOIL, noun [Latin perdo, to lose, and folium, leaf.] A plant that annually loses or drops its leaves; opposed to evergreen. The passion flower of America and the jasmine of Malabar, which are evergreens in their native climates, become perdifoils when transplanted into Britain.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI