armil
noun
ar·mil
variants or armill
ˈärməl,
-(ˌ)mil
plural -s
1
: armilla sense 1
2
[earlier armilla, from Medieval Latin, from Latin] : an ancient astronomical instrument for determining equinoxes and solstices by the shadows cast by the sun
Word History
Etymology
Middle English armille bracelet, from Middle French, from Latin armilla