stereoelectroencephalographically

Etymology tree
Proto-Indo-European *ster-der.
Ancient Greek στερεός (stereós)
Ancient Greek στερεο- (stereo-)der.
English stereo-
French électro-bor.
Ancient Greek ἤλεκτρον (ḗlektron)bor.
Latin ēlectrum
Latin electro-bor.
English electro-
Proto-Indo-European *h₁én
Ancient Greek ἐν (en)
Ancient Greek ἐν- (en-)
Proto-Hellenic *kʰepʰəlā́
Ancient Greek κεφᾰλή (kephălḗ)
Ancient Greek -ος (-os)
Ancient Greek ἐγκέφᾰλος (enképhălos)der.
English encephalo-
Proto-Indo-European *gerbʰ-
Proto-Hellenic *grə́pʰō
Ancient Greek γρᾰ́φω (grắphō)
Ancient Greek -ᾱ (-ā)
Ancient Greek -η (-ē)
Ancient Greek γραφή (graphḗ)
Ancient Greek -γραφίᾱ (-graphíā)bor.
French -graphieder.
English -graphy
English stereoelectroencephalography
Proto-Indo-European *-ikos
Proto-Italic *-ikos
Latin -icuslbor.
Old French -iquebor.
Middle English -ik
English -ic
English stereoelectroencephalographic
Proto-Indo-European *h₂el-der.?
Proto-Italic *-ālis
Latin -ālisbor.
Old French -albor.
▲
Latin -ālis
Old French -elbor.
▲
Latin -ālisbor.
Middle English -al
Proto-Indo-European *leyg-der.
Proto-Germanic *līkąder.
Proto-Germanic *-līkaz
Proto-Germanic *-ê
Proto-Germanic *-līkê
Proto-West Germanic *-līkē
Old English -līċe
Middle English -ly
Middle English -ally
English -ally
English stereoelectroencephalographically
From stereoelectroencephalographic + -ally.