You know how things can stare you in the face and you still somehow manage to overlook them? As in that famous video where a big guy in a gorilla outfit escapes most viewers’ attention?
It’s happened to me in my book Babel, in chapter 8. The story is about what it actually means when we say that ‘Russian, like English and Latin, belongs to the Indo-European family’. How does this show in the actual language? The chapter includes a little table of verbal endings, including the first person singular, which is a dead give-away of Russian being Indo-European: Latin has -o or -m, Russian has -u or -m (the latter now rare, but common in the Slavic family). Germanic languages no longer have those particular endings, though Old German still had -o.
But the thing is: Germanic languages do still have that ending. Or rather, one does, in one verb. That may sound like a tiny remnant, but it isn’t some obscure word in some far-flung Faroese island dialect. Quite the contrary, I’m referring to the most common verb in the largest Germanic language, as big a verbal gorilla as one could wish for: it’s English’s to be. First person singular, present tense: am, more often than not reduced to its erstwhile ending, m.
In Proto-Indo-European the form was esmi, which begat Proto-Germanic izm(i), which begat Old English eom, which begat am. So there: it’s a direct cognate of the Latin and Russian words for ‘am’, which are sum and (the now archaic) jesm’.
Thanks to John McWhorter for pointing out the origin of am’s m-ending in his latest Lexicon Valley podcast.