Leáþor

According to the Old English Dictionary:

es;

leáþor

soap.] leaþor">of nitre used for soap">n[?]. A kind of nitre used for soap, lather :-- Leáþor nitrum, Wrt. Voc. ii. 62, 3. Of leáþre nitria, 61, 27. Gníd swíðe ðæt heó sý eall geléþred þweah mid ðý leáþre ðæt heáfod gelóme rub strongly so that it may be all lathered, wash the head frequently with the lather, Lchdm. iii. 2, 4. [Icel. lauðr; soap.] leaþor">of nitre used for soap">n. froth or foam of the sea water; a kind of nitre or soap.] leaþor