Apparently from <span class="searchmatch">Proto</span>-Indo-European *ser- + *-wos, but the exact sense of the root *ser- from which *<span class="searchmatch">serwos</span> derives is uncertain. Either: “to bind”, in...
the Proto-Indo-European root *ser- (guard) (8 c, 0 e) *ser-wo-s <span class="searchmatch">Proto</span>-<span class="searchmatch">Italic</span>: *<span class="searchmatch">serwos</span> (or perhaps from the sense “to bind” below) Old Latin: servos Latin:...
From <span class="searchmatch">Proto</span>-Indo-European *serweh₂yeti, from *ser- (“to guard”). By surface analysis, *<span class="searchmatch">serwos</span> + *-āō. *serwāō first-singular present indicative to serve...