delead

de- +‎ lead

delead (third-person singular simple present deleads, present participle deleading, simple past and past participle deleaded)

1. (transitive) To remove the lead (metal) from.
   • 1941, Rutherford Thompson Johnstone, Occupational diseases: diagnosis, medicolegal aspects and treatment:

     Most feel that the deleading should be carried out only in the hospital and with adequate laboratory checks, although Belknap, cited above, deleads patients in mild cases while they are ambulatory but under close supervision.

• dealed, leaded