Not English Deferr has no English definition. It may be misspelled.
English words similar to 'deferr':defer
To delay or put off an event, appointment etc.
The Mirror and the Lamp
, passage=“[…] Churchill, my dear fellow, we have such greedy sharks, and wolves in lamb's clothing. Oh, dear, there's so much to tell you, so many warnings to give you, but all that must be postponed for the moment.”}}
* adjourn, defer, delay, forestay, procrastinate, put off, put on ice, stay, suspend
* prepone (India )