To desist in practicing, using, or doing; to renounce. [attested only in the late 16th century]
verb
(transitive)
To desert; to forsake. [attested only in the late 16th century]Lesley Brown (editor), The Shorter Oxford English Dictionary, 5th edition (Oxford University Press, 2003 [1933], ISBN 978-0-19-860575-7), page 2
Grammar and declension of ABAND
aband ( third-person singular simple presentabands, present participleabanding, simple past and past participleabanded)
aband (third-person singular simple presentabands, present participleabanding, simple past and past participleabanded) (obsolete)