v.
Pronunciation: ' r ə -f ə n
Function: verb
Inflected Form: rough · ened ; rough · en · ing \ ' r ə -f ə -ni ŋ , ' r ə f-ni ŋ \
Date: 1582
transitive verb : to make rough or rougher <her hands were roughen ed by work ― Ellen Glasgow>
intransitive verb : to become rough