fan = a winnowing shovel (see photo)
derivation: from (4429)
http://bible.crosswalk.com/Lexicons/Greek/grk.cgi?number=4425&version=kjv

(4429)
to spit
derivation: a root word (cf (4428))
http://bible.crosswalk.com/Lexicons/Greek/grk.cgi?number=4429&version=kjv

(4428)
to fold together, roll up
derivation: probably akin to petannumi (to spread, and thus apparently allied to (4072) through the idea of expansion, and to (4429) through that of flattening, cf (3961))
http://bible.crosswalk.com/Lexicons/Greek/grk.cgi?number=4428&version=kjv

(4072)
to fly
http://bible.crosswalk.com/Lexicons/Greek/grk.cgi?number=4072&version=kjv

(3961)
1] to tread
   1.a] to trample, crush with the feet
   1.b] to advance by setting foot upon, tread upon: to encounter successfully the greatest perils from the
          machinations and persecutions with which Satan would fain thwart the preaching of the gospel
   1.c] to tread under foot, trample on, i.e. to treat with insult and contempt: to desecrate the holy city by
         devastation and outrage
derivation: from a derivative probably of (3817) (meaning a "path")
http://bible.crosswalk.com/Lexicons/Greek/grk.cgi?number=3961&version=kjv

(3817)
1] to strike, smite
2] to sting (to strike or wound with a sting)
to hit (as if by a single blow and less violently than 5180)
http://bible.crosswalk.com/Lexicons/Greek/grk.cgi?number=3817&version=kjv

(5180)
1] to strike, beat, smite
   1.a] with a staff, a whip, the fist, the hand
   1.b] of mourners, to smite their breast
2] to smite one on whom he inflicts punitive evil to smite
   2.a] metaphorically. i.e. to wound, disquiet one's conscience
http://bible.crosswalk.com/Lexicons/Greek/grk.cgi?search=5180&version=kjv&type=eng&submit=Find

A link to each occurrence of this word in the homepage:
1] fan