chairwarmer

Etymology tree
Proto-Indo-European *ḱe?
Proto-Indo-European *ḱóm
Proto-Indo-European *ḱm̥-th₂der.?
Proto-Hellenic *kətá
Ancient Greek κατά (katá)
Proto-Indo-European *sed-der.
Proto-Indo-European *sedreh₂
Proto-Hellenic *hédrā
Ancient Greek ἕδρα (hédra)
Ancient Greek κᾰθέδρᾱ (kăthédrā)bor.
Latin cathedrader.
Old French chaierebor.
Middle English chayere
English chair
Proto-Germanic *warmaz
Proto-Indo-European *-yeti
Proto-Indo-European *-éyeti
Proto-Germanic *-janą
Proto-Germanic *warmijaną
Proto-West Germanic *warmijan
Old English wierman
Proto-West Germanic *warmōn
Old English wearmian
Middle English warmen
English warm
Proto-Indo-European *-yósder.
Proto-Italic *-āzijos
Latin -āriusnom.
Latin -āriusbor.
Proto-Germanic *-ārijaz
Proto-West Germanic *-ārī
Old English -ere
Middle English -ere
English -er
English warmer
English chairwarmer
From chair + warmer.