> Could this be a new word out in the wild?

That's one reason I decided to ask around before contacting CBS; I don't want to cry wolf and spoil opportunities for future corrections.
The fact that {ngItlh} is already a word that doesn't make much sense in this context leads met to think it's probably not, but it's hardly solid proof.

Anyhow, I'll leave a caveat that these could be new words in the e-mail; I don't want to wrongly accuse a fellow jatlhwI' of improper translations.

From: tlhIngan-Hol <tlhingan-hol-bounces@lists.kli.org> on behalf of De'vID <de.vid.jonpin@gmail.com>
Sent: Tuesday, April 23, 2019 22:51
To: tlhIngan-Hol
Subject: Re: [tlhIngan Hol] Property of the Klingon Empire

On Tue, 23 Apr 2019 at 19:19, Lieven L. Litaer <levinius@gmx.de> wrote:

On top of the shirt, it says {ngItlh 47} - whatever that may mean. Maybe
it's just English with Klingon letters, so that might be "fix 47"?

47 has a special meaning in Star Trek:

https://memory-alpha.fandom.com/wiki/47

The other word is {ngISwI'}. Looks Klingon, but is not. It's combined
with the letter 12.

Could this be a new word out in the wild?

De'vID