Is みなすじ a "Precedented" Reading of 水脈? I heard the word sung as in a song, and I wouldn't have known what word was actually being said if I hadn't had the lyrics present. My dictionary doesn't show that as a possible reading, so I checked the individual kanji readings, and while is indeed the kun-yomi for , was only listed for as nanori. I wanted to ask if this reading has any precedent--that is, if someone heard this and did not have printed lyrics handy, would they know what word this is? Is this a reading that has been used before or regularly enough to be associated with the word?

as is probably rare, but the same meaning is suggested by compound words that use it such as , where it means a line of something.

As for , it seems to be a word invented by the person who wrote the lyrics as far as I can tell from google results. However it follows the rules for old words that use as a prefix: , }, .

It's not a piece of standard vocabulary, but I'd say it's definitely "wordy" enough to use as an author.