The Collaborative International Dictionary of English v.0.48:

Passim \Pas"sim\, adv. [L.]
   Here and there; everywhere; as, this word occurs passim in
   the poem.
   [1913 Webster]

WordNet (r) 3.0 (2006):

passim
    adv 1: used to refer to cited works [syn: passim,
           throughout]

The Free On-line Dictionary of Computing (30 December 2018):

PASSIM

   A simulation language based on Pascal.

   ["PASSIM: A Discrete-Event Simulation Package for Pascal", D.H
   Uyeno et al, Simulation 35(6):183-190 (Dec 1980)].