addle
adjective
1. Having lost the power of development, and become rotten, as eggs; putrid.
2. (by extension) Unfruitful or confused, as brains; muddled. John Dryden.
3. addled
noun
1. (obsolete) Liquid filth; mire.
2. (provincial) Lees; dregs.
3. A foolish or dull-witted fellow.