1) Footnote word 2) Footnote word in Latin 3) Found throughout the text 4) Here and there 5) Throughout 6) Used to refer to cited works 
Latin, meaning: adv. far and wide, everywhere, scattered about / indiscriminately. 
everywhere; dispersedly
• (adv.) Here and there; everywhere; as, this word occurs passim in the poem.
Pas'sim adverb [ Latin ] Here and there; everywhere; as, this word occurs passim in the poem. 
Passim is Latin for Everywhere
[adv] - used to refer to cited works
passim Here and there. Applied to words used many times in a piece of writing.
adverb used to refer to cited works
adv. far and wide, everywhere, scattered about.