Thetis

Silver-footed Thetis (Ancient Greek: Θέτις), disposer or "placer" (the one who places), is encountered in Greek mythology mostly as a sea nymph or known as the goddess of water, one of the fifty Nereids, daughters of the ancient one of the seas with shape-shifting abilities who survives in the historical vestiges of most later Greek myths as Proteus (whose name suggests the "first", the "primordial" or the "firstborn").