D defs.my
Entry 4 senses Webster, 1913

Spinster

/spĭn'-stẽr/ · Spin·ster · IPA /ˈspɪnstɚ/
01 n. A woman who spins, or whose occupation is to spin.
  1. 1.
    A woman who spins, or whose occupation is to spin.
    “She spake to spinster to spin it out.” — Piers Plowman.
    “The spinsters and the knitters in the sun.” Shak.
  2. 2.
    A man who spins.[Obs.]
  3. 3.
    An unmarried or single woman; -- used in legal proceedings as a title, or addition to the surname.(Law)
    “If a gentlewoman be termed a spinster, she may abate the writ.” — Coke.
  4. 4.
    A woman of evil life and character; -- so called from being forced to spin in a house of correction.[Obs.]