Fun fact: The -gh endings of many English words share a proto–Indo European root with that enclitic¹ -que in Senatus Populusque Romani. I remember being skeptical of this when I first heard it assuming that the person was arguing for a shared Latin heritage until I dug in and discovered that it actually went back to PIE.²

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1. For the non-linguists here, an enclitic is a suffix added to a word that either functions as a separate word (here -que means “and”) or as a grammatical modifier like the possessive ’s in English.

2. Proto–Indo European for those of you who don’t do acronyms.