Definition of "foster-daughter" [foster-daughter]

• A female nourished or reared like an own daughter, though not such by birth. (noun)

The Century Dictionary (Public Domain)

• "In 1892 their beloved young friend (and almost foster-daughter) Johanna von Rentzell, a young woman studying music who had lived with the Bernsteins since the mid-1880s, married Andreas von Tuhr, a professor of law in Basel and later in Straßburg."
• "Her circle includes grandchildren, an old friend who lost her own home to foreclosure, a Chihuahua, and the one-year-old child of a woman Ms. Halterman's former foster-daughter met in jail."
• "When the Lord Abbot had suddenly and superciliously vanished from the eyes of his expectant vassals, the Sub – Prior made amends for the negligence of his principal, by the kind and affectionate greeting which he gave to all the members of the family, but especially to Dame Elspeth, her foster-daughter, and her son Edward."