Atlasssian JIRA workflow software requires graphically expressed Priority values.
That means images.
Here they are, from 0 to 10, including ? (question mark). Used font is New Brilliant.
#####We are using following priority names:
In this Sprint or never!
Highly important
Important
Required
Needed
Desirable
Wanted
Nice to have
Lifts the spirit
Minor
If there is really nothing else to do...