Wait, wait, wait. . . dharma means negative karma?!
Now I finally understand that awful Jenna Elfman show!
Actually, Dharma means the fulfilling of the law....
The Pali term Karma literally means action or doing. Any kind of intentional action whether mental, verbal, or physical, is regarded as Karma. It covers all that is included in the phrase "thought, word and deed". Generally speaking, all good and bad action constitutes Karma. In its ultimate sense Karma means all moral and immoral volition. Involuntary, unintentional or unconscious actions, though technically deeds, do not constitute Karma, because volition, the most important factor in determining Karma, is absent.
There is no word in English but, बुरा कर्मा means bad karma in Hindi...कर्मा is karma नकारात्मक कर्म is negative karma and धर्म is dharma. The concept of + or - karma actually has to do with the inception/intention stage of an action...but only when the karma 'ripens' does the karmic cycle end for that particular act, and that can be several 'lifetimes' later...or immediately. Karma Niyama - order of act and result, e.g., desirable and undesirable acts produce corresponding good and bad results as an innate sequence.
*I put this together from several sources...a wordsmith I ain't.