A derivative of <span class="searchmatch">Proto</span>-Indo-European *dóru (“oak”), possibly via a vṛddhi formation *<span class="searchmatch">derwós</span> (“of oak”). The Irish sense "true, certain" is a shift from...
*dárwiš <span class="searchmatch">Proto</span>-Indo-Aryan: *dárwiṣ Sanskrit: दर्वि (dárvi, “spoon”) *derw-ó-m <span class="searchmatch">Proto</span>-Balto-Slavic: *dérwa (see there for further descendants) <span class="searchmatch">Proto</span>-<span class="searchmatch">Celtic</span>: *derwom...