Seek and ye shall find. Those other sources you cited are UNauthoritative. Try a good dictionary == a good college dictionary -- Webster"s New World Dictionary of the American Language/ College Edition with over 1700 pgs -- you know something you won't find in your house but in a good library, that gives you word origins and traces their derivations. Webster's and British history is quite clear. Deny as you might but can't change history, the Scriptures, or the dictionary. For hundreds of years people here in America and Britain have referred to Satan as Old Harry. What Old Harry is all about is preserved in the word "harry" with a small "h". If you look in all the wrong places you'll never find it, but if you look for it with an honest heart, you will find the truth and perhaps a pardon as well. The choice is yours -- to find the truth about "Harry" or be a fool for Harry.
The two word refference to the sevil, used in America and England is " OLD HAIRY " ; not Old Harry ! " WEBSTER'S ENCYCLOPEDIC UNABRIDGED DICTIONARY of the Enaglish Language", which is what I quoted, is well OVER 1700 page. You just don't like that , because it doesn't substanciate what YOU quoted. I*f you'd rather, I can use my first addition of " JOHNSON'S DICTIONARY " which is THE first dictionary of the English language, and which only 6 people, world wide, have in their private collection. All the others are in museums or special ( no one but specialists can even look at it in these places ) library vaults.
The deffinition of harry, with a small " H " is : 1. to harass,annoy,or prove a nuisanceto be repeated attacks,worry: to harry the enemy forces. 2.to ravage, as inwar, devistate ;The troops harried the countryside.-v.i. 3. to make harrising incursions. [ ME heri(en), OE her(g)ian ( deriv. of here army ); G (ver) heeren,Icel herja to harry, lat waste.]
As you can see, harry ( with a small h) is a verb , and has a liniage in Middle English, Old English, German, and Icelandic. A tutonic word of anticquity. There is NO Hebrew, Aramaic , Greek, or Latin word / root .
Please refer to my previous post, wherein I have supplied you with a rather definative book list about the devil, his history, and his names.
If one calls a shoe, an apple, it is still a shoe.