←
Old English hrōst (inherited)
←
Middle English roost (alter)
←
Middle English rost (alter)
←
Middle English rooste (alter)
←
Middle English rosten (link)
←
Middle English roster (link)
←
Old French rost (borrowed)
←
Old French roste (mention)
→
English roost (inherited)
→
Middle English rust (alter)
→
Middle English rosten (affix)