What does "maiden" mean?

Additional senses

1. 2.An instrument resembling the guillotine, formerly used in Scotland for beheading criminals. Wharton.
2. 3.A machine for washing linen.
3. 4.Of or pertaining to a maiden, or to maidens; suitable to, or characteristic of, a virgin; as, maiden innocence. "Amid the maiden throng." Addison. Have you no modesty, no maiden shame Shak.
4. 5.Never having been married; not having had sexual intercourse; virgin; -- said usually of the woman, but sometimes of the man; as, a maiden aunt. "A surprising old maiden lady." Thackeray.
5. 6.Fresh; innocent; unpolluted; pure; hitherto unused. "Maiden flowers.' Shak. Full bravely hast thou fleshed Thy maiden sword. Shak.
6. 7.Used of a fortress, signifying that it has never been captured, or violated. T. Warton. Macaulay. Maiden assize (Eng. Law), an assize which there is no criminal prosecution; an assize which is unpolluted with blood. It was usual, at such an assize, for the sheriff to present the judge with a pair of white gloves. Smart. -- Maiden name, the surname of a woman before her marriage. -- Maiden pink. (Bot.) See under Pink. -- Maiden plum (Bot.), a West Indian tree (Comocladia integrifolia) with purplish drupes. The sap of the tree is glutinous, and gives a persistent black stain. -- Maiden speech, the first speech made by a person, esp. by a new member in a public body. -- Maiden tower, the tower most capable of resisting an enemy.
7. 8.To act coyly like a maiden; -- with it as an indefinite object. For had I maiden'd it, as many use. Loath for to grant, but loather to refuse. Bp. Hall.