ˌ ̷ ̷ ̷ ̷ˈ ̷ ̷ ̷ ̷ transitive verb
Etymology: Middle English overmaistren, from over (I) + maistren to master
1. : to establish mastery over : subdue , vanquish
the sensation overmastered me completely — Rudyard Kipling
2. obsolete : to be master over