1626: podcast May 28, 2019

Historically, the influence of rhyming has led to the creation or modification of many words along the way.  While as a trend this is less common today than at other times in history, this still happens plenty. For instance, the word 'podcast' was created deliberately to sound like 'broadcast'. It is true that it is a contraction of 'iPod' and '-cast', but it could have just as well have been called something more general or fitting like 'webcast' was, but it wouldn't have sounded as catchy.