IMPLEX
Etymology
Adjective
implex (not comparable)
Intricate, involved, entangled, complicated, complex.
Noun
implex (plural implexes)
A genealogical coefficient of a given genealogical tree; defined as the difference between the number of theoretical ancestors of a person and the number of his/her real ones in a given generation (the degree of pedigree collapse).
Source: Wiktionary
Im"plex, a. Etym: [L. implexus, p. p. of implectere to infold; pref.
im- in + plectere to plait: cf. F implexe.]
Definition: Intricate; entangled; complicated; complex.
The fable of 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. Addison.
Source: Webster’s Unabridged Dictionary 1913 Edition