a. dial. Also 7 lette. [f. LET v.2 + -Y.] That lets or hinders.
1642. Best, Farm. Bks. (Surtees), 110. When there is any lette Weather in Harvest time.
1886. Elworthy, W. Somerset Word-bk., Letty-weather, showery; rainy; lit. hindering weather—i.e. hindering harvesting or out-door work.
