Licensing question: Can we use KeePassXC's word list?

[sts10]

I'd love to include the word list the KeePassXC password manager uses by default, which is basically the EFF long list with some nice word substitutions.

My hesitation is purely due to licensing compatibility questions. I think the KeePassXC is available under either GPL-2 or GPL-3. I deliberately chose the Mozilla Public License v2.0 for this project, as I believe it strikes a nice balance between copyleft licenses and permissive licenses.

The questions is whether I can take material from a GPL'd project and use it in an MPL2'd project. I probably knew the answer at one point but have forgotten.

[sts10]

Collecting some URLs for us on this question:

• https://www.mozilla.org/en-US/MPL/2.0/combining-mpl-and-gpl/
• https://www.fsf.org/blogs/licensing/mpl-2.0-release
• https://www.gnu.org/licenses/license-list.html#MPL-2.0
• https://www.gnu.org/licenses/gpl-faq.html#WhatIsCompatible

It seems like you can use MPL2'd code in a (L)GPL 3 project, but we're asking the reverse: Using GPL'd code (KeePassXC's word list) in and MPL'd project (Phraze) (without making Phrase GPL v3.0). Given the basic idea of the "viral" nature of the GPL, I'm guessing this isn't possible...

[sts10]

Now thinking the answer is "no", unless we change Phraze's license to GPL or AGPL. Closing for now.