Numerology didn't arrive at its vocabulary through a single committee. It grew up in parallel in different places — Pythagorean Greece, medieval Kabbalah, and Vedic India all produced number systems that solved a similar human itch (find meaning in a birth date or a name) with their own words for the results.
Bhagyank sits comfortably inside that Indian tradition. It's built from the birth date — day, month, and year, every digit added together and reduced — the same raw material Western sites use for what they usually call the life path number or, confusingly, sometimes the destiny number.
That word "destiny," in Western numerology, has drifted. On some sites it's a synonym for life path. On others, it's reserved for a completely different calculation built from the letters of your full birth name, added up using a letter-to-number key. Same word, different ingredients.