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-plasty [-plasty 词源字典]: word-forming element meaning "act or process of forming," also "plastic surgery" applied to a specific part, from Greek -plastia, from plastos "molded, formed," verbal adjective from plassein "to mold" (see plasma).[-plasty etymology, -plasty origin, 英语词源]
plastic (adj.): 1630s, "capable of shaping or molding," from Latin plasticus, from Greek plastikos "able to be molded, pertaining to molding, fit for molding," also in reference to the arts, from plastos "molded, formed," verbal adjective from plassein "to mold" (see plasma). Surgical sense of "remedying a deficiency of structure" is first recorded 1839 (in plastic surgery). Meaning "made of plastic" is from 1909. Picked up in counterculture slang with meaning "false, superficial" (1963). Plastic explosive (n.) attested from 1894.
meloplasty: "Plastic surgery of the cheek; an instance of this", Late 19th cent. Probably from French méloplastie from Hellenistic Greek μῆλον cheek + -plastie.
mammaplasty: "Plastic surgery of the breast, to alter its size, shape, or position; an instance of this", 1930s; earliest use found in Revue de Chirurgie Structive. From mamma + -plasty, probably after German Mammaplastik.
genioplasty: "Plastic surgery of the chin; an instance of this", Mid 19th cent. From genio- + -plasty, after French génioplastie ( P. F. Blandin De l'autoplastie 57)).
rhytidectomy: "Plastic surgery for the removal of lines or wrinkles from the skin, especially of the face; an instance of this, a facelift", 1930s; earliest use found in Richard John Ernst Scott (1863–1932). From ancient Greek ῥυτιδ-, ῥυτίς wrinkle + -ectomy.