metamorphosis
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source: By Username1927 - Own work, CC BY-SA 4.0
noun (plural metamorphoses |-fəˌsēz| ) Zoology
(in an insect or amphibian) the process of transformation from an immature form to an adult form in two or more distinct stages.
〘生物〙 変態
a change of the form or nature of a thing or person into a completely different one, by natural or supernatural means:
大変貌, 変容.
e.g. his metamorphosis from presidential candidate to talk-show host.
ORIGIN
late Middle English: via Latin from Greek metamorphōsis, from metamorphoun ‘transform, change shape’.