parapsychological

Etymology tree
Proto-Indo-European *per-
Proto-Indo-European *preh₂-
Proto-Hellenic *pərai
Ancient Greek πᾰρᾰ́ (părắ)
Ancient Greek πᾰρᾰ- (pără-)der.
English para-
English psychology
Proto-Indo-European *-ikos
Proto-Italic *-ikos
Latin -icuslbor.
Old French -iquebor.
Middle English -ic
Proto-Indo-European *h₂el-der.?
Proto-Italic *-ālis
Latin -ālisbor.
Old French -albor.
▲
Latin -ālis
Old French -elbor.
▲
Latin -ālisbor.
Middle English -al
Middle English -ical
English -ical
English psychological
English parapsychological
From para- + psychological.