Middle English tosten

← Old French toster (borrowed)

← Proto-Indo-European *torséyeti (derived)

← Proto-Italic *torzeō (derived)

← Latin tostus (derived)

← Latin torreō (mention)

→ English toast (mention)

→ English toast (inherited)

→ Welsh tost (derived)

→ Middle English tost (back-formation)

→ Middle English toste (mention)

→ Middle English toost (mention)