If you’re a solivagant, it means you like wandering alone (with or without a cloud). It’s also an adjective (AKA a describing word) – so you can be a solivagant while taking a solivagant walk. The etymology is fairly straightforward: it’s from the Latin words sōlus for ‘alone’, and vagō which means ‘to wander’. And it has the suffix ‘ant’ at the end, which we use to form nouns of agency (a fancy way of saying people or things that do an action) and adjectives that describe a state or quality.
If you like wandering at night (which obviously you can only really do if you’re a man, sadly), you’re a noctivagant.
Perhaps because writers are generally quite solitary creatures (and always cold, if you’re me), English has lots of words and phrases for being on your tod. In fact, there’s one right there – ‘on your tod’ is a shortening of the (weirdly posh) Cockney rhyming slang phrase ‘on one’s Tod Sloan’. Tod Sloan was a world-famous American horse jockey who lost all his money and died penniless and alone (sad face).
Other lonely words you might not have come across before include:
solitudinarian: this one’s pretty obvious – someone who leads a solitary or secluded life
anchorite: a man who keeps himself to himself for religious reasons (like a hermit). If you’re a lonely religious lady, you’re an anchoress. This comes from the Late Latin word (I’m not sure why it wasn’t on time) anachoreta, which can be traced to the Greek anachōrein, meaning ‘to withdraw’
eremite: another type of religious hermit (turns out religion is a lonely biz). This word comes from the Greek erēmitēs which means ‘living in the desert’.
In case my solitary words have left you feeling a bit depressed, here’s (a very un-PC/sweary) puppet version of Kim Jong-il singing about feeling alone in the world because no one’s as great as he is.