nonsense word used as an expression to a baby, attested by 1888; of no etymology.
1880, in biology, from bio- "life" + -morphic, from Greek morphē "form, shape," a word of uncertain etymology.
"contraction of the preputial orifice," 1670s, from Greek phimosis, literally "muzzling," from phimos "a muzzle, a gag," a word of unexplained etymology.
in biology, "of or pertaining to form," 1826, from Greek morphē "form, shape," a word of uncertain etymology, + -ic.
term of contempt for a person, 1873, of unknown etymology. OED suggests it is a variant of scout (v.2).
robot in the "Dr. Who" television program on BBC, 1963, an invented word of no etymology.