alchemystical

Etymology tree
Proto-Indo-European *ǵʰew-
Proto-Indo-European *-mn̥
Ancient Greek -μᾰ (-mă)
Ancient Greek χῠ́μᾰ (khŭ́mă)
Proto-Indo-European *-h₂
Proto-Indo-European *-éh₂
Proto-Indo-European *-i-eh₂
Proto-Hellenic *-íā
Ancient Greek -ία (-ía)
Ancient Greek χυμείᾱ (khumeíā)bor.
Arabic الْكِيمِيَاء (al-kīmiyāʔ)bor.
Medieval Latin alchēmīa
Proto-Indo-European *-id-
Proto-Indo-European *-yéti
Proto-Indo-European *-idyéti
Proto-Hellenic *-íďďō
Ancient Greek -ῐ́ζω (-ĭ́zō)
Proto-Hellenic *-tās
Ancient Greek -τής (-tḗs)
Ancient Greek -ῐστής (-ĭstḗs)bor.
Latin -ista
Medieval Latin alchēmistader.
Old French alquemisteder.
English alchemist
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 alchemistical
Ancient Greek μῡ́ω (mū́ō)
Proto-Indo-European *-eti
Proto-Indo-European *-eyéti
Proto-Indo-European *-esyéti
Proto-Indo-European *-éh₁ti
Proto-Indo-European *-yeti
Proto-Indo-European *-éh₁yeti
Proto-Indo-European *-yeti
Proto-Indo-European *-éyeti
Ancient Greek -έω (-éō)
Ancient Greek μῠέω (mŭéō)
Proto-Indo-European *-tósder.
Ancient Greek -της (-tēs)
Ancient Greek μῠ́στης (mŭ́stēs)
Proto-Indo-European *-kos
Ancient Greek -κός (-kós)
Ancient Greek -ῐκός (-ĭkós)
Ancient Greek μῠστῐκός (mŭstĭkós)der.
Latin mysticus
Old French mistiqueder.
English mystic
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Middle English -al
English -al
English mystical
blend?
English alchemystical
Variant of alchemistical, perhaps with intentional blend of mystical.