@iurciuc thanks for your PR! I'm afraid we have a hard nut to crack here as per the tests: axes was previously singularized to axe and after your change no longer is. I can't really see a way forward as fixing your bug means breaking something that worked before :/

Theoretically we could fix axis -> axes and still have axes -> axe as the lib has no way of knowing what word it should singularize into. Thoughts?

In 99% of cases axes->axe will be what user expected!
To be consistent(English in this case is not so consistent) we can build a feature to provide possibility to extend the logic of this lib by a config.

I think config is an overkill in this case :) Let's proceed with fixing axis -> axes but keeping axes -> axe

Fixed

Thanks @iurciuc!