Help me figure out this word

[whatausername]

"Detonie"

"Still [water] of finkell (fennel) alone and still [water] of Detonie alone which is special Good for the eyes." from the Women's Recipe Book, National Library of Scotland.

https://www.nms.ac.uk/explore-our-collections/stories/scottish-history-and-archaeology/recipes-remedies-and-charms/illnesses/eye-conditions/

I tried searching Detonie, Detonie botanic and Detonie place. Just about to try adding 17th & 18th C. to my terms.

Could it be the herb dittany which reputedly has healing properties?

Could it be a bad spelling of Betony.

I know years ago correct spelling wasn’t a thing. People just spelled things as they thought. Maybe that was common when few people could read. Then add in dialects and accents, and it guess anything could be spelled badly.

Or perhaps Detonie could be the Latin base for whatever it is. Or look up herbs, good for the eyes, and see what comes up.

I would assume Dittany.

I'm not sure that grows in Scotland?

Betony would be my guess.