Adamitical

Etymology tree
Proto-Semitic *ʔadam-
Hebrew אָדָםbor.
Ancient Greek Ἀδάμ (Adám)bor.
Latin Ādāmlbor.
Old English Adam
Middle English Adam
English Adam
English -itic
English Adamitic
Proto-Indo-European *h₂el-der.?
Proto-Italic *-ālis
Latin -ālisbor.
Old French -albor.
▲
Latin -ālis
Old French -elbor.
▲
Latin -ālisbor.
Middle English -al
English -al
▲
English Adam
Proto-Indo-European *-tósder.
Ancient Greek -της (-tēs)der.
Ancient Greek -ῑ́της (-ī́tēs)der.
Latin -ītēsbor.
French -iteder.
English -ite
English Adamite
Proto-Indo-European *-ikos
Proto-Italic *-ikos
Latin -icuslbor.
Old French -iquebor.
Middle English -ic
▲
Middle English -al
Middle English -ical
English -ical
English Adamitical
From Adamitic + -al, or from Adamite + -ical.