The noun forms of the verb to subvert are subverter, subversion, and the gerund, subverting.

asserter assertor Bessemer/torque/ converter convertor deserter diverter flirter frankfurter hurter inserter inverter invertor subverter perverter reverter squirter

extract from my "elf-ahn-Et-ik" Rhyme Guide

According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern --BV--T-R. That is, nine letter words with 3rd letter B and 4th letter V and 7th letter T and 9th letter R. In alphabetical order, they are:

subverter

According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 9 words with the pattern SUBV-----. That is, nine letter words with 1st letter S and 2nd letter U and 3rd letter B and 4th letter V. In alphabetical order, they are:

subvassal

subvening

subversal

subversed

subverses

subverted

subverter

subvicars

subvisual

According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 24 words with the pattern ---VE-TE-. That is, nine letter words with 4th letter V and 5th letter E and 7th letter T and 8th letter E. In alphabetical order, they are:

brevetted

chavettes

cleveites

convected

convented

converted

converter

corvetted

corvettes

crevettes

curvetted

fauvettes

ferventer

harvested

harvester

nonvested

perverted

perverter

prevented

preventer

sirventes

subverted

subverter

unaverted