c.1300, "fact of appearing to view," from O.Fr.
semblance, semblant "likeness, appearance," from
sembler "to seem, appear," from L.
simulare "to resemble, imitate," from
similis "like" (see
similar). Meaning "person's appearance or demeanor" is attested from c.1400; that of "false, assumed or deceiving appearance" is from 1599. Meaning "person or thing that resembles another" is attested from 1513.