IM'PLEX, adjective [Latin implexus. See Implicate.] Infolded; intricate; entangled; complicated. Every poem is simple or implex; it is called simple, when there is no change of fortune in it; implex when the fortune of the chief actor changes from bad to good, or from good to bad.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI