n. That which counteracts a charm; a counterspell.
the GNU version of the Collaborative International Dictionary of English
v. To destroy the effect of a charm upon.
n. That which has the power of destroying the effect of a charm.
The Century Dictionary and Cyclopedia
n. That which has the power of opposing or counteracting the effect of a charm; an opposite charm, as of one person in contrast with another.
To counteract the effect of a charm or of charms upon; affect by opposing charms.
Word Usage
"She refused to eat dinner with him while he retained his ghastly aspect, and he could find no countercharm he felt competent to use, but fortunately the spell wore off in time."