extrarhythmical

Etymology tree
Proto-Indo-European *h₁éǵʰ
Proto-Indo-European *-s
Proto-Indo-European *h₁éǵʰs
Proto-Indo-European *-teros
Proto-Indo-European *h₁eǵʰsteros
Proto-Italic *eksteros
Latin exter
Latin extrā
English extra-
Proto-Indo-European *ser-?
Proto-Indo-European *srew-
Proto-Indo-European *sru-dʰ-mo-s
Proto-Hellenic *hrutʰmós
Ancient Greek ῥῠθμός (rhŭthmós)
Proto-Indo-European *-kos
Ancient Greek -κός (-kós)
Ancient Greek -ῐκός (-ĭkós)
Ancient Greek ῥυθμικός (rhuthmikós)
English rhythmic
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 rhythmical
English extrarhythmical
From extra- + rhythmical.