completion of a specific task, such as project work that is dependent on external funding and the post will end once the funding ceases or no further funding can be found.
cwblhau tasg benodol, megis gwaith prosiect sy'n dibynnu ar gyllid allanol a bydd y swydd yn dod i ben ar ôl i'r cyllid ddod i ben neu os na fydd modd dod o hyd i ragor o gyllid.