con·tuse 
(kən-tz, -tyz)
(kən-tz, -tyz)tr.v. con·tused, con·tus·ing, con·tus·es
To injure without breaking the skin; bruise.
[Middle English contusen, from Latin contundere, contūs-, to beat : com-, intensive pref.; see COM- + tundere, to beat.]