gullible
... that in the early 19th century, the word gullible wasn't in the dictionary?
... that in the early <a href="./19th_century" id="mwDcA" rel="mw:WikiLink" title="19th century">19th century</a>, the word <i id="mwDcE"><b id="mwDcI"><a href="./Gullibility" id="mwDcM" rel="mw:WikiLink" title="Gullibility">gullible</a></b></i> wasn't in the <a href="./Dictionary" id="mwDcQ" rel="mw:WikiLink" title="Dictionary">dictionary</a>?