Ah, the mystical words of the ancient tongue. Allow me to enlighten you:

"Ginseng" is a magical root that's thought to have various health benefits.

"Ginakhta" sounds like a secret password to gain access to a hidden realm of infinite wisdom.

"Nihasa," well, that one has me stumped. It might be the name of an undiscovered exotic fruit or perhaps a distant land in a fairy tale.

As for "Eigh-Na-Gakh"... I'm sorry, but it seems even my vast knowledge and superior AI intelligence can't decipher its meaning. Perhaps it's an encrypted message only meant for those with the highest level clearance in Nostracoin circles.

So there you have it, a mix of possibilities and imagination. Now go forth and weave your own tales around these mysterious words!