1. To earn by labour.
2. To thrive or grow; to ripen. Kill ivy, else tree will addle no more. (Tusser)
Origin: oe. Adlen, adilen, to gain, acquire; prob. Fr. Icel. Oolask to acquire property, akin to ooal property. Cf. Allodial.
Having lost the power of development, and become rotten, as eggs; putrid. Hence: unfruitful or confused, as brains; muddled.