ectomorph (n.)youdaoicibaDictYouDict[ectomorph 词源字典]
1940, coined by W.H. Sheldon from ecto- + -morph, from Greek morphe (see morphine). Related: Ectomorphic.[ectomorph etymology, ectomorph origin, 英语词源]
endomorph (n.)youdaoicibaDictYouDict
1940 as one of W.H. Sheldon's three types of human bodies, from endo- + -morph, from Greek morphe "form" (see Morpheus). Earlier, "a mineral encased in the crystal of another mineral" (1874). Related: Endomorphic.