It's the old-school definition
Which you would not cite despite an explicit request...
the definition one uses to become or remain wealthy.
Citing definitions rarely makes one wealthy. Given your cavalier attitude towards the meanings of the very words you are using, I'm beginning to doubt the value of continuing the conversation...
Which means, that whoever earned those dollars lost some of their value. Where did it go ...?
They had value only by convention and that convention changed.
That means, the money is failing in one of its primary purposes — being means of storing value.
When inflation rises, the interest rate for the best savings accounts will rise as well (ditto new CDs).
Whether you can still beat inflation or not, the point is, you are losing some of the wealth you had. The government, which spent the freshly-printed money before it loses value, gains gained what you lose — thus making it indistinguishable from tax. Whether that's good or bad, it is a form of taxation.
Your arguments make a case for it being a "good" form of taxation — you should stick to that and stop denying, that it is a tax...