nugatory
Concise Oxford English Dictionary © 2008 Oxford University Press:
nugatory /ˈnjuːgət(ə)ri, ˈnuː-/
▶adjective
- 1 of no value or importance.
- 2 useless or futile.
– origin C17: from L. nugatorius, from nugari ‘to trifle’.
'nugatory' also found in these Oxford entries:

