I have an Implementation of Old Hungarian font. I would like grant it. How it could to do?
Sorry: grant to who?
I suggest you to create a github (or somesuch) project, and put your font project there with a license of your liking. You may use a permissive license if in doubt, or MPL+LGPL as LibreOffice code uses (I am unsure, however, what is the established practice in font licensing). Then you may advertise the availability of the project in a relevant mailing list.