Obs. exc. dial. Forms: 1 (WS.) ealdmódor, 36 eldmoder, 59 elmother, 6 eldmother. [OE. (WS.) ealdmódor, f. eald, ELD a., OLD + MOTHER. Cf. OFris. aldmóder, aldemóder; and see ELDFATHER.]
1. A grandmother.
c. 1000. Ælfric, Gloss., in Wr.-Wülcker, 173. Auia, ealde modor.
a. 1300. Cursor M., 1189. Abel had his eldmoder maiden-hede.
c. 1425. Voc., in Wr.-Wülcker, 672. Hec auia, eldmoder.
2. a. A mother-in-law. b. A stepmother.
c. 1440. Promp. Parv., 137. Eld modyr [K. elmoder], socrus.
1513. Douglas, Æneis, II. ix. (viii.) 112. Eldmoder to ane hundreth thair saw I Hecuba.
1519. Will of R. Payne (Somerset Ho.). To Margaret Shelle myne Elmother, a melche neete.
1571. Wills & Inv. N. C. (1835), I. 352. I gyue vnto my eldmother his wyffe my wyffes froke.
1674. Ray, N. C. Words., 16. An El mother. Cumb. A step mother.
1864. Whitby Gloss., Elmother, step-mother.