I'm seeking opinions about whether to capitalize mode names in educational materials I'm preparing. In ordinary references (not in titles) should I use Dorian or dorian, Locrian or locrian? Here's a summary of what I've found so far:
1. Wikipedia capitalizes mode names. Powerful trend setter, Wikipedia.
2. Irvine's Writing about Music has this to say: "In classic modal theory, four of the eight modes are called authentic modes and four are called plagal modes. The four authentic modes take their names from regions in ancient Greece; hence, the names are proper nouns and they must be capitalized: Dorian, Phrygian, Lydian, and Mixolydian...Note that the plagal modes too are capitalized: Hypodorian, Hypophrygian, Hypolydian, Hypomixolydian.
3. Most posts here, and almost all of the carefully written ones, capitalize mode names.
The case for lower case:
1. Journalistic/academic practice. Duke's Journal of Music Theory: "Names of modes ('major,' 'minor,' 'dorian,' 'phrygian,' etc.) are not normally capitalized" (https://www.dukeupress.edu/Assets/Downloads/JMT_sg.pdf, p 3); Crane School of Music: "Use lower case for ... [t]onalities: modes, pentatonic, major and minor, except when they are part of a title" (https://www.potsdam.edu/academics/crane-school-music/departments-programs/music-theory-history-composition/using-musical).
2. Common English practice when it comes to "toponyms" (ie words derived from place names): ref. agate, bedlam, balkanization, bikini, byzantine, ottoman, what not. A couch is to the Ottoman Empire as a sequence of intervals is to the Kingdom of Phrygia?
3. Related to #2, the modern modes have lost their connection with the modes used by the Greeks (ie modern and ancient mode names refer to different intervallic sequences), so why dignify the modern names with initial caps?
4. Capitalizing the mode names, especially when you don't capitalize "major" or "minor," lends them excessive visual weight.
Having considered these points, I'm leaning towards lower case, but I'm interested in what you all have to say. Should Wikipedia change its practice? Or should I, um, capitulate?
2020-06-06 edit: Appreciating, enjoying, and mulling the responses so far, and am allowing a bit more time for more. Is it bad form here not to pick an "answer" to a request for opinions? Based on the input so far there doesn't seem to be a settled correct practice.