←
Old French tour (alter)
←
Old French toer (alter)
←
Old French torel (link)
←
Middle High German turm (link)
←
Middle Low German tōren (link)
←
Ancient Greek τύρρις (derived)
←
Ancient Greek τύρσις (mention)
←
Alemannic German Tuure (link)
→
English tower (mention)
→
French tour (inherited)
→
Scottish Gaelic tùr (derived)