Artificial intelligent assistant

back-ward

ˈback-ˈward, n. Obs.
  Rear-guard, rear-ward.

1205 Lay. 23814 Þat wes þa bac-warde [1250 bac-ward] 1580 Hollyband Treas. Fr. Tong., Donner sur la queuë d'vne armée, to fall vpon the backe ward of an armie.

Oxford English Dictionary

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