As nouns the difference between rindle and frindle
is that rindle is a small water course or gutter while frindle is (rare|humorous) a pen.
rindle
English
Noun
(
en noun)
A small water course or gutter.
* Here, add durably archived quotations showing the word in use.
References
* Webster's Revised Unabridged Dictionary, published 1913 by C. & G. Merriam Co