mispair

mis- +‎ pair

mispair (third-person singular simple present mispairs, present participle mispairing, simple past and past participle mispaired)

1. To pair incorrectly; to mismatch in twos.
   • 1982, Yutaka Kawazoe, “Molecular Mechanism of Chemical Modification of Cellular Nucleic Acid Bases by 4-Hydroxyaminoquinoline 1-oxide”, in Carcinogenic and Mutagenic N-substituted Aryl Compounds, page 185:

     Whether they are involved in carcinogenesis by induction of a heritable lesion would depend, I believe, on their ability either to mispair or to misrepair.

• impairs