shapeshift

Etymology

Probably a back-formation from shapeshifter.

verb

1. (biology, fantasy, mythology, intransitive) To change one's shape or form (into another) through often magical means, normally applied only to living beings.
   Journey in exactly the same way as you did to shapeshift into your power animal except, this time, set your intention to shapeshift into a named ancestor. 2010, Mike Williams, Follow the Shaman's Call: An Ancient Path for Modern Lives, page 91
   I can't shapeshift Zane, I only look like this I always have. 2019, Emily Rayven, Gateway To Brienka
   But to embed oneself in an irregular and unpredictable food supply as mycelium does, one must be able to shapeshift. 2020, Merlin Sheldrake, Entangled Life, page 57
2. (figurative, intransitive) To undergo a noticeable change (in character for example), to metamorphosize.
   While Chelsea Wolfe has often shapeshifted in terms of how she presents her music, one thing remains constant: her big mood. 2019, Adam Turner-Heffer, Chelsea Wolfe: Birth of Violence review, The Skinny, September 2019, page 57