My grammar nazi Greek gf made me a cheat sheet with when I need to include the -ν, and she says that using it before a rho is actually incorrect? Yet I was marked as having made a typo when I decided not to include it.
Ah, I asked her about that distinction. She said it was wrong rather than uncommon, but wasn't sure. Thanks! (Also, if you can edit it, maybe remove the -ν from the sentence if that is the more common version?)