December days: Languages

angelofthenorth asked me to write about languages. I've already written about programming languages this month, so while I do believe that natural languages and programming languages have important common properties and that it's worthwhile for PL designers to think about concepts from natural linguistics, I'll stick to natural languages here.

( tá m'árthach foluaineach lán d'eascann )

This post is part of my December days series. Please prompt me!