And "nowadays" is an example of that process https://books.google.com/ngrams/graph?content=nowadays,%20now-a-days&year_start=1800&year_end=2000&corpus=15&smooth

And "nowadays" is an example of that process https://books.google.com/ngrams/graph?content=nowadays,%20now-a-days&year_start=1800&year_end=2000&corpus=15&smoothing=3&share=&direct_url=t1;,nowadays;,c0;.t1;,now%20-%20a%20-%20days;,c0 https://books.google.com/ngrams/graph?content=nowadays,%20no...