Early 17th century; earliest use found in Thomas Rogers (c1553–1616), religious controversialist and Church of England clergyman. Either recontract, or from re- + contract after recontract.
recontract2
/ˌriːkənˈtrakt//ˌriːˈkɒntrakt/
verb
1[with object]To bind (a person) once more by the terms of a contract; to establish an agreement or contract concerning (something) again. Also without object, sometimes with for or with.
2[with object]To make smaller or more compact again. Also without object: to become smaller again.
3[with object]To acquire (especially an illness) again.
Origin
Late 16th century; earliest use found in Thomas Beard (c1568–1632), Church of England clergyman and author. From re- + contract.