Part or all of this entry has been imported from the 1913 edition of Webster's Dictionary, which is now free of copyright and hence in the public domain. The imported definitions may be significantly out of date, and any more recent senses may be completely missing.
Other Word Forms of Letch
Origin of Letch
From loec - later lache, variant letch - for example Sandy's Letch located east of Annitsford in Northumberland.
Perhaps back-formation from obsolete letcher variant of lecher
American Heritage Dictionary of the English Language, 5th Edition