Deriving from <a href="https://en.wiktionary.org/wiki/%CE%BA%CE%AC%CE%BB%CE%B1%CE%BC%CE%BF%CF%82" class="extiw" title="wikt:κάλαμος">κάλαμος</a>, <a href="https://en.wikipedia.org/wiki/kalamos" class="extiw" title="en:kalamos">kalamos</a> was a mythological figure, child of a river god, grandson of Oceanus, and was defined as a reed, made of reed or cane, collectively of plants, but not a bush or a tree, as well as a staff, shaft of an arrow, measuring rod, pen, and a flute.
<a href="//commons.wikimedia.org/wiki/User:Davidlwinkler" title="User:Davidlwinkler">Davidlwinkler</a>
<span class="int-own-work" lang="en">Own work</span>