Wound. As in you wound something around (coiled), or you received a wound (an injury.)

An inductor is a passive electronic component which is capable of storing electrical energy in the form of magnetic energy. Basically, it uses a conductor that is wound into a coil, and when electricity flows into the coil from the left to the right, this will generate a magnetic field in the clockwise direction.

• Something wound in the form of a helix or spiral.
• Common name for any intra-uterine contraceptive device (Abbreviation: IUD)-the first IUDs were coil-shaped.
• (electrical) A coil of electrically conductive wire through which electricity can flow.

The correct spelling is armature (wound coil in motors and generators).