While not being a translator myself I don't have an account on the language site, so hoping someone can pick this up for action.
There is a minor typo in the core_badges description translation in the CY (Welsh) language pack
It currently reads 'DIsgrifiad' (note the capital I second letter) - Should be 'Disgrifiad'
Thanks
Richard
Bore da Richard
That's about the sum of my Welsh, although I did for several years have a partner from Swansea
I submitted the change to the language pack maintainer for them to accept hopefully, and referenced your forum post. You are most welcome to make an account on the site though and submit further error corrections yourself, since you know what you are talking about!
Please see : Contributing a translation