Neovim

Hi people,

I use vim to write and edit text files written in common ASCII-Languages mixed with some words written in old greek letters (α, Σ, η, ...). I want to find a way to search for every word written in old greek letters, so I can use / nN to cycle through them. Any ideas how to do this in the most elegant way?

I tried the regex pattern [α-ω]+ but I kinda already expected that this won't work...