samclem, please note I have two points:
1 I agree with OED that there is no known evidence as to where capital-B (vs small-b) “Bloody” came from including variants of “By [y]our Lady”
2 I think the OED’s examples of possible progenitors were poorly chosen from the field, to the point of being ludicrous Come to today’s sensibilities, C K Dexter Haven’s Victorian menstrual pads fit even better than my irreligious example or the OED’s.
Well, OK, three - it’s fun
“Strike one.” No cites. True, but neither does tha paraphrase of OED in the article.
“Strike two.” Actually, a repeat of 1 - no source shown. But as I pointed out, that source had itself no citeable source and was not in any way authoritative. If you want to look for it, feel free, I’ll send the roll of sixty or so blogs I read - it’s in comments somewhere, the only reason I even remembered it was it was only a few days ago. And even if you find the book itself, I have no doubt its evidence is apocryphal anyway or it and its sources would have long ago settled the derivation question.
“Strike three. ‘Bloody’ wasn’t a profane word in the 17th century or before according to cites from the OED.”
Not exactly: “They add, 'There is no ground for the notion that ‘bloody’, offensive as … it is now to polite ears, contains any profane allusion…”, but neither is there evidence that it does NOT contain a profane reference. No-one KNOWS where it came from, there is no evidence EITHER WAY. Sorry for the caps, but I want to ephasizse some how - and my toothache (two teeth pulled, and it still hurts) is driving me up the wall, too.
Profane:
1 Marked by contempt or irreverence for what is sacred.
2 Nonreligious in subject matter, form, or use; secular: sacred and profane music.
3 Not admitted into a body of secret knowledge or ritual; uninitiated.
4 Vulgar; coarse.
5 To treat with irreverence: profane the name of God.
6 To put to an improper, unworthy, or degrading use; abuse.
Five of six (number 3) ain’t a bad match. Limiting it to rhe first and fifh, once again OED says “no evidence” - except they say it was in use for a hundred years before the first reason they use for it being objectionable, and then say maybe it was objectionable for reasons that have existed since the word was first used in the sense of sanguinary, and offer no other reason for it being “naughty”. I suspect the author of that bit in the OED knew “'s Blood” was an easy target to show a lack of connection to proposed derivations and thought that a sufficient example without dragging all the others - and I pretty much agree with that approach, I just think it was a bad choice, TOO easy a target. As to the reference to the Bloods, oh come now. Do we here in the US dislike the word “cripple” because of the “Crips” gang, or "bloody’ because of the “Bloods” gang? Did we a hundred years ago? Will we in two hundred years?