Why is the word "democracy" not in the preamble of the US Constitution?

[with republicanism being the rights-protecting form of governance afforded us by our Constitution]

—Thomas Jefferson

Why? Try these on for size:

I want to touch my sister’s boobs. What do I say?

Meanwhile, when the Democratic Party formed in 1828, it was with a Tory outlook keen on robbing others of their rights:

Another tendency, which is extremely natural to democratic nations and extremely dangerous, is that which leads them to despise and undervalue the rights of private persons.

—Alexis de Tocqueville

Do you have any attributes quirks sensitivities abilities etc that you've come to learn most people don't experience? E.g. dream with subtext or experience de ja vu regularly or know you experience life very differently from those around you etc?

—Benjamin Franklin

I do not say that democracy has been more pernicious on the whole, and in the long run, than monarchy or aristocracy. Democracy has never been and never can be so durable as aristocracy or monarchy; but while it lasts, it is more bloody than either.

To blacks: “You can’t drink from that water fountain… eat in this cafeteria… ride this bus… go to this school. We voted fair and square and your side lost.

How do so-called Religious/Christian people really think homosexuality is even a sin? That would be nonsense. In fact, LGBT people need love instead of contempt/hatred. The word Homosexual didn't appear until the 1850s.

—John Adams

The republican is the only form of government which is not eternally at open or secret war with the rights of mankind.

In other words, our Founding Fathers and other Whig intellects of that time well understood that democratic methods are the surefire means to do serious damage to the rights guaranteed under republican self-government.

Why do I feel like something bad is going to happen to me?

To Indians: “Pack up what belongings you can carry and start walking to Oklahoma. Your fertile lands are ours now. We voted fair and square and your side lost.”

When the people find they can vote themselves money, that will herald the end of the republic.

Majority-rules democracy is the way that majorities run roughshod over minorities, destroying rights and all ideas of equality under the law. No fair-minded person wants anything to do with democracy.

Which Red Sox prospect will be next to draw Roman Anthony-level excitement? - MassLive

To slaves: “You can forget your notions of freedom. We voted fair and square and your side lost.”