From Old Japanese. Compound of <span class="searchmatch">大倭</span> (Ōyamato) + <span class="searchmatch">根子</span> (neko, “root → origin, source”) + の (no, possessive particle) + <span class="searchmatch">天皇</span> (sumeramikoto, a term of address...
using this term, see Citations:<span class="searchmatch">天皇</span>. 太上天皇 (opoki1-sume1rami1ko2to2) <span class="searchmatch">大倭</span><span class="searchmatch">根子</span><span class="searchmatch">天皇</span> (Opoyamato2neko1 no2 Sume1rami1ko2to2) 神日本磐余彦<span class="searchmatch">天皇</span> (Kamuyamato2 Iparepi1ko1 no Sume1rami1ko2to2...
【<span class="searchmatch">大倭</span><span class="searchmatch">根子</span><span class="searchmatch">天皇</span>】 [noun] (honorific) a more respectful term of address for an Emperor or Empress (regnant) of Japan...
【<span class="searchmatch">大倭</span><span class="searchmatch">根子</span><span class="searchmatch">天皇</span>おおやまとねこのすめらみこと】 [noun] (honorific) a more respectful term of address for an Emperor or Empress (regnant) of Japan...