Meaning of COUNTER- in English

COUNTER-

prefix

Etymology: Middle English countre-, from Middle French contre-, contre — more at counter (adverb)

1.

a. : contrary : opposite : adverse

counter current

counter order

b. : opposing : retaliatory : answering

counter blow

counter weapon

2. : complementary : corresponding : alternate

counter weight

counter part

counter theme

3. : duplicate : substitute

counter foil

Webster's New International English Dictionary.      Новый международный словарь английского языка Webster.