α. Middle English ridell, Middle English rudel, Middle English rydal, Middle English rydell, Middle English rydelle, Middle English rydill, Middle English rydyl, Middle English (1800s historical) ridel.
β. Middle English riddyll, Middle English ryddell, Middle English ryddill, Middle English (1800s– historical) riddel, 1500s ryddel; N.E.D. (1909) also records a form Middle English ryddyll.
γ. Middle English reddell, Middle English redel, Middle English redeldes (plural, transmission error), Middle English redele, Middle English redell, Middle English redil, Middle English redyll; also Scottish pre-1700 redill.