rîmnoun. edge, hem, border
ringnoun. cold pool or lake (in mountains)
A Doriathrin noun meaning “cold pool or lake (in mountains)” derived from the root ᴹ√RINGI (Ety/RINGI). Its Quenya cognate ᴹQ. ringwe suggests a primitive form ✶riñgwi [riŋgwi]. This is problematic, since [[ilk|[ŋg] vanished before [w] lengthening the preceding vowel]], as with Dor. líw < ᴹ✶liñ(g)wi. It is possible, though, that this word developed directly from the root form ✶riñgi [riŋgi], as suggested by Helge Fauskanger (AL-Doriathrin/ring).
A noun for “pool” derived from the root ᴹ√LIN (Ety/LIN¹). Its Quenya cognate ᴹQ. linya suggests its primitive form was ✶linyā* [linjā]. If so, it is an example of how, after [[ilk|final [a] was lost]], the [[ilk|final [j] became [i]]] and then became [e], as suggested by Helge Fauskanger (AL-Ilkorin/line).
A Doriathrin noun for “pool”, derived from root ᴹ√MBOTH (Ety/MBOTH). Its Quenya cognate ᴹQ. motto suggests a primitive form of ✶mbottʰō. As pointed out by Helge Fauskanger (AL-Doriathrin/moth), the primitive [mb-] might be expected to have become [b-], since initial nasals usually vanished before stops in Ilkorin, as for example Ilk. bril < MBIRÍL*.