limber

a two-wheeled horse-drawn vehicle used to pull a field gun or caisson

attach the limber; "limber a cannon"

cause to become limber; "The violist limbered her wrists before the concert"

(used of e.g. personality traits) readily adaptable; "a supple mind"; "a limber imagination"

(used of artifacts) easily bent

(used of persons' bodies) capable of moving or bending freely