1.
1. A soft tumour or bloody wart on horses or oxen.
2. A disease of the roots of turnips, etc.; called also fingers and toes.
Origin: AS. Ampre, ompre, a crooked swelling vein: cf. Prov. E. Amper a tumour with inflammation. Cf. The first syllable in agnail, and berry a fruit.
Source: Websters Dictionary
(01 Mar 1998)