from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. violence; force; power
from the GNU version of the Collaborative International Dictionary of English
- n. Violence; force; power.
from The Century Dictionary and Cyclopedia
- n. Violence; force; power: a contraction of the phrase by the strong hand. See strong arm or hand, under strong.
strong + hand (Wiktionary)
It looks like most persons in a romantic relationship who assumes a male role tend to have a stronghand against the partner assuming female role.