<span class="searchmatch">up</span>-<span class="searchmatch">to</span>-<span class="searchmatch">datenesses</span> (rare) plural of <span class="searchmatch">up</span>-<span class="searchmatch">to</span>-dateness...
From <span class="searchmatch">up</span>-<span class="searchmatch">to</span>-date + -ness. <span class="searchmatch">up</span>-<span class="searchmatch">to</span>-dateness (usually uncountable, plural <span class="searchmatch">up</span>-<span class="searchmatch">to</span>-<span class="searchmatch">datenesses</span>) The quality or degree of being <span class="searchmatch">up</span> <span class="searchmatch">to</span> date. 1923, "Mirrors of Moscow...