Using is the correct spelling.An example sentence is "will you please stop using my deodorant".
That is the correct spelling of the word "overusing" (using in excess).
The likely word is "wasting" (using inefficiently, or bodily atrophy).
If using the word as to carry or bring as in "to bear arms" then it is bear. If using the word as uncoveredas in "his arms were bare" than it is bare.
Initiative - A good way to check spelling is by using a word processing application.
You can spell the word entice.
An example: Can you spell your name?
The letters spell the word temples.
The word is "amuse."
quit
The letters GNOITRNE spell the word "nitrogen."
Uterus.
Foray.
nitpick
The anagram is disaster.
lotion
byword