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While word is a real word, the abbr part is a well introduced abbreviation that almost always goes together with WORD.
When searching in G for worldabbr or wordabbrev.com G suggests "Did you mean: wordabr?" - whereas word is equal to "my" WORD and abr is a misspelled version of "my" abbr.
There is a site called "wordabr" but no title, descr. in G, just whacky pages (a few) and no PR.
There is NO logical word or conclusion to wordabr whatsoever.
Why does G keep suggesting such garbage?
how do they come to suggest something that has no results?
Personally I find it to be quite accurate and quite useful. It's getting to the point where I don't double-check the spelling of my searches that closely any more, because I'm confident I'll be able to correct them with a single click.
It's a lot better than on eBay, where they guess what you meant to type, give you a page of search results about that instead, and even default the search box to match their assumption.