The modifier ÄÃ± is related to the word jÄÃ±a, “middle”, So, ÄÃ± generally concerns itself with middle-ness. Combined with the directional prepositions, rÄ and rÅ«, the concept becomes less clear. For example, rÄ NP ÄÃ± means, predictably, into the middle of NP or amid/amidst/among NP. If the NP is a large area, however, it can mean throughout NP. rÅ« NP ÄÃ±, in contrast, means around NP or surrounding NP. So, with rÄ, ÄÃ± denotes a space (NP) and the thing spoken of is inside that space, not near an edge, and possibly in multiple spots inside that space. With rÅ«, ÄÃ± again denotes a space (NP), but now the thing spoken of is specifically not inside that space, but rather outside of it, at multiple spots outside of it.
rÄjÄÃ± is rÄ NP ÄÃ± without a specified location, and so means ‘to the middle’, ‘to among’, or ‘throughout’.
Likewise rÅ«jÄÃ± is rÅ« NP ÄÃ± without a specified location, and so means ‘surrounding’ or ‘around’.
Ã±amma sÄim makkepÅlien rÄ anmÄrwi ÄÃ± pÄ“xa
They became scattered throughout the world.
[pÄ“xa is there for emphasis]
Ã±i sÄim rÅ« sÄen ÄÃ±;
They gathered around him.
Note: That’s it for motion and direction, for now anyway. Feel free to ask questions about anything I didn’t cover. Next up, kinship and clan words, for a bit. After that, I’m not sure. Leave me a suggestion.