tetraanionic

Etymology tree
Proto-Indo-European *kʷetwóres
Proto-Hellenic *kʷétwores
Ancient Greek τέσσᾰρες (téssăres)
Ancient Greek τετρᾰ- (tetră-)bor.
English tetra-
Proto-Indo-European *h₂en-
Proto-Hellenic *aná
Ancient Greek ᾰ̓νᾰ́ (ănắ)
Ancient Greek ᾰ̓νᾰ- (ănă-)
Proto-Indo-European *h₁ey-
Proto-Indo-European *h₁éyti
Proto-Hellenic *éimi
Ancient Greek ῐ̓όν (ĭón)
Ancient Greek ἀνῐόν (anĭón)lbor.
English anion
Proto-Indo-European *-ikos
Proto-Italic *-ikos
Latin -icuslbor.
Old French -iquebor.
Middle English -ik
English -ic
English anionic
English tetraanionic
From tetra- + anionic.