A word appearing as ᴱQ. (-)rīna “scattered, sown” in the Qenya Lexicon of the 1910s under the early root ᴱ√RIẎI (QL/80). I interpret the (-) to mean this word can be either an independent adjective or a suffix.

Neo-Quenya: Since there is evidence the root ᴹ√RĪI̯ survived into the early 1930s (PE21/38), I retain ᴺQ. rína for purposes of Neo-Quenya, but only for the sense “scattered”; for “sown” I would use the passive participle rerina of the later verb ᴹQ. rer- “to sow” (Ety/RED). Note, however, that this adjective does conflict with the later word rína “crowned”. To avoid such conflicts you might instead use the passive participle vintaina of the verb vinta- [winta-] “to scatter”.