←
Old English rēdere (inherited)
←
Old English rǣdere (mention)
←
Middle English reder (inherited)
←
Middle English redar (mention)
←
Middle English redere (mention)
←
Middle English redare (mention)
←
Proto-West Germanic *rādāri (inherited)
←
Saterland Frisian Räider (cognate)
→
Japanese リーダー (borrowed)