<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.0/jquery.min.js"></script>

<script>
$(document).ready(function(){

var spans = document.getElementsByTagName("span");
for(var i=0;i<spans.length; i++) {
    if(spans[i].innerHTML == "new item") {
        spans[i].innerHTML = "new person";
        break;
    }
}

});
</script>

<script>
document.addEventListener("DOMContentLoaded",
    function () {
        ExecuteOrDelayUntilScriptLoaded(function () {
            var ReRenderListView_old = ReRenderListView
                ReRenderListView = function (b, l, e) {
                ReRenderListView_old(b, l, e)
                changeText()
            }
        }, "inplview.js")
        changeText()
    }
);

function changeText(){
    var element = document.querySelector('#idHomePageNewItem span:nth-child(2)')
    element ? (element.innerHTML = "New Person") : null
}
</script>

<script type="text/javascript">
    window.onload=function(){
    var spans = document.getElementById('idHomePageNewItem').getElementsByTagName('span');
    spans[1].innerHTML="New Person";
}
</script>