reciprocable
/rɪˈsɪprəkəbl/adjective
1Capable of reciprocating or being reciprocated; characterized by reciprocity.
2 Mechanics. Of a mechanical part: capable of moving or being moved back and forth.
Origin
Late 16th century; earliest use found in Thomas James (?1573–1629), librarian and religious controversialist. From classical Latin reciprocus reciproque + -able.