637: flush flash blush plash Sep 5, 2016

Across languages, and even within the same ones, knowing the way that variations and equivalents often occur can be a good way to judge what is related. As discussed here before, P is Greek or sometimes German often will be F in English, C at the beginning of a word in Romance languages will be H, and S in German will be T. As such, 'flash' and 'flush' which are Middle English words are related to, and influenced by 'blush', 'plash' (and its alteration: 'splash'), all relating to the meaning of something springing up.