relinquent
/rɪˈlɪŋkw(ə)nt/noun
A person who gives up or abandons something, as a place or belief.
adjective
Originally and chiefly US. Characterized by or relating to default or non-payment.
Origin
Mid 17th century; earliest use found in John Goodwin (?1594–1665), Independent minister. From classical Latin relinquent-, relinquēns, present participle of relinquere relinquish.