pairwise

Adjective

 * 1) Occurring in pairs; two at a time.
 * They proceeded to make pairwise comparisons.

Translations

 * Danish:
 * Esperanto:
 * Finnish: parittainen
 * French:
 * German: ,
 * Italian: due a due, coppia a coppia

Adverb

 * 1) In or by pairs.