Got happily lost reading a bit about chiliasm.

 What interested me most wasn't the turn of the millennium exactly as I got lost reading a bit about chiliasm.This pigeon language PIE from trade routes and massive movements of people that all the other Latinized languages the Indo-European people of the world were using. It was that feeling we get in the fictional worlds of The Hobbit or Game of Thrones or even the Naruto world. Where it's not Asia or Europe or the Americas. 

There's a very nicely done animated svg gif graphic on the PIE wiki page. 

chiliasm (n.)

1600, from Latinized form of Greek khiliasmos, from khilias, from khilioi "a thousand, the number 1,000," which is probably from a PIE *gheslo-, source also of Sanskrit sahasra- "thousand" and perhaps also Latin mille, but the exact original sense of the root is unclear.

https://en.wikipedia.org/wiki/Proto-Indo-European_language 

PIE "PIE" and "Proto-Indo-European" redirect here. For the people, see Proto-Indo-Europeans. For other uses, see PIE (disambiguation).

Not to be confused with Pre-Indo-European languages or Paleo-European languages.

and

*gheslo- / Indo-European roots

Examples of words with the root gheslo-: chiliad, Hazara, kilo-, mil, mile, milfoil, millefiori glass, millefleur, millenary, millennium, millepore, millesimal, milli-, milliary, millime, million, millipede, per mil.

gheslo-

Seen by some as a base for words meaning "thousand"

Oldest form *g̑heslo-, becoming *gheslo- in centum languages.

1. Suffixed form *ghesl-yo-. chiliad, kilo- from Greek khīlioi, thousand.

2. Compound *sm̥-gheslo- (*sm̥-, one; see sem-¹) Hazara from Old Iranian *hazahram, thousand.

3. mil¹, mile, millenary, millesimal, milli-, milliary, millime, million; milfoil, millefiori glass, millefleur, millennium, millepore, millipede, per mil from Latin mīlle, thousand, which has been analyzed as *smī-, "one" + a form *ghslī-, but is of obscure origin.

Note to self. millepore is a coral. and millipore is a filter, made from cellulose acetate membranes, capable of removing very small particles. Related to nanopore A pore, of nanometre dimensions, in a membrane. 

Milliary related to latin for mile and milestones.

Miliary for Millet the seed, used to describe millet sized symptoms of a disease, example lesions of tuberculosis.

THIS and actual thousands of other word examples is why I fight with Grammarly and Autocorrect. I choose the words, trying to express or understand a specific meaning, NOT what is the current most popular word with a similar spelling.