<u>this </u>is a word used to describe a noun (person, place, or thing). The adjective here is indefinite, it does not describe in detail. etc.. that girl (what girl?) that house(what house?)
<span><span>swain </span><span>| swān | </span></span><span>noun <span><span>1. </span><span><span>literary </span><span>a young lover or suitor<span>. </span></span></span></span><span><span>2. </span><span><span>archaic </span><span>a country youth<span>. </span></span></span></span></span><span><span>ORIGIN: </span><span><span>late Old English </span>(denoting a young man attendant on a knight), from <span>Old Norse </span><span>sveinn </span><span>‘lad’</span><span>.