from the earlier and original *erélis. *<span class="searchmatch">orь̀lъ</span> m eagle * -ъmь in North <span class="searchmatch">Slavic</span>, -omь in South <span class="searchmatch">Slavic</span>. East <span class="searchmatch">Slavic</span>: Belarusian: аро́л (aról) Russian: орёл...
(dialectal) Lithuanian: erẽlis m, arẽlis m (dialectal) West Baltic: Old Prussian: arelie <span class="searchmatch">Proto</span>-<span class="searchmatch">Slavic</span>: *<span class="searchmatch">orьlъ</span> (< *arílas) (see there for further descendants)...
(“singing”) *sъsьlъ (“ground squirrel”) ← <span class="searchmatch">Proto</span>-Balto-<span class="searchmatch">Slavic</span> *śuśas (“shoving, ditching”) (possibly) *<span class="searchmatch">orьlъ</span> (“eagle”) ← <span class="searchmatch">Proto</span>-Indo-European *h₃érō (“stirring,...