n.
Pronunciation: ' ba-t ə n
Function: verb
Inflected Form: bat · tened ; bat · ten · ing \ ' bat-ni ŋ , ' ba-t ə n-i ŋ \
Etymology: probably from Old Norse batna to improve; akin to Old English betera better
Date: circa 1540
intransitive verb
1 a : to grow fat b : to feed gluttonously
2 : to grow prosperous especially at the expense of another ― usually used with on
transitive verb : FATTEN