தமிழ் - தமிழ் அகரமுதலி
    ஒன்றற்கொன்று உதவியணி .

தமிழ் லெக்சிகன் - Tamil Lexicon
  • ஒன்றற்கொண்றுதவியணி. (அணியி.43.) Figure of speech in which two things are described as reciprocating the same relationship, as the moon does not shine without the night, nor the night without the moon;