If you mean the "the third word in 'the English language'", then it's
language.
If you mean "'what' is the third word in 'the English language'", then it's
what.
If phonetic answers work, then
agree.
If I can use the three letters in any order,
energy.
If you mean it as it's supposed to mean, you are like the cake: a lie. There's a lot of words that end in -gry.
affect-hungry fire-angry MacLoingry Seagry
aggry Gagry mad-angry self-angry
Agry girl-hungry mad-hungry selfe-angry
ahungry gonagry magry sensation-hungry
air-hungry gry malgry sex-angry
anhungry haegry man-hungry sex-hungry
Badagry half-angry managry Shchigry
Ballingry hangry mannagry shiggry
begry heart-angry Margry Shtchigry
bewgry heart-hungry maugry sight-hungry
boroughmongry higry pigry mawgry skugry
bowgry hogry meagry Sygry
braggry hogrymogry meat-hungry Tangry
Bugry hongry menagry Tchangry
Chockpugry hound-hungry messagry Tchigry
Cogry houngry music-hungry tear-angry
cony-gry huggrymuggry nangry th'angry
conyngry hund-hungry overangry tike-hungry
cottagry Hungry Bungry Pelegry Tingry
Croftangry hwngry Pingry toggry
diamond-hungry iggry Podagry ulgry
dog-hungry Jagry Pongry unangry
dogge-hungry job-hungry pottingry vergry
Dshagry kaingry power-hungry Vigry
Dzagry land-hungry profit-hungry vngry
eard-hungry Langry puggry war-hungry
Echanuggry leather-hungry pugry Wigry
Egry ledderhungry red-angry wind-hungry
euer-angry life-hungry rungry yeard-hungry
ever-angry Lisnagry scavengry yird-hungry
fenegry losengry Schtschigry Ymagry