<span class="searchmatch">undersidan</span> definite singular of undersida...
<span class="searchmatch">undersidans</span> definite genitive singular of undersida...
nominative genitive singular indefinite undersida undersidas definite <span class="searchmatch">undersidan</span> <span class="searchmatch">undersidans</span> plural indefinite undersidor undersidors definite undersidorna undersidornas...