To perform; to do; to conduct oneself; to carry out.

fair / just

fairness / justice

judgement, discretion, admeasurement

admeasure, determine the quantity of someone's share

he / distal demonstrative, something far off removed from both speaker and listener: that / boyfriend

distal demonstrative, something far off removed from both speaker and listener: that, yon / particularly, male personal third person pronoun: he / by extension from he: boyfriend

he; boyfriend

certiorari

everything