The American Heritage® Dictionary of the English Language: Fourth Edition. 2000.
Appendix I
Indo-European Roots
ENTRY:
mel-2
DEFINITION:
Strong, great. 1. Suffixed (comparative) form *mel-yos-.ameliorate, meliorate, meliorism, from Latin melior, better. 2. Suffixed zero-grade form *m-to-.molto, multi-, multitude, from Latin multus, much, many. (Pokorny 4. mel- 720.)
-to-. molto, multi-, multitude, from Latin multus, much, many. (Pokorny 4. mel- 720.) 
