Note: Both endorse and indorse are used by good writers; but the tendency is to the more general use of indorse and its derivatives indorsee, indorser, and indorsement.
ENDORSE
En*dorse", n. (Her.)
Defn: A subordinary, resembling the pale, but of one fourth its width (according to some writers, one eighth).
ENDORSEE
En`dor*see", n.
Defn: Same as Indorsee.
ENDORSEMENT
En*dorse"ment, n. Etym: [Cf. F. endossement.]
Defn: Same as Indorsement.
ENDORSER
En*dors"er, n.
Defn: Same as Indorser.
ENDOSARC
En"do*sarc, n. Etym: [Endo- + Gr. (Biol.)