Three words are consecutive entries in a dictionary and are very unusual. Their first five letters are the same. The first three of those letters make up a common word. The first four letters of those letters also make up common word. The last three letters of the words are words in their own right. The last four letters of the words are again words in their own right.The last two letters of the words are shown below, in alphabetical order. Can you determine the three words?

_ _ _ _ _ GE
_ _ _ _ _ NT
_ _ _ _ _ RT

HINT:
_ _ _ _ AGE
_ _ _ _ ANT
_ _ _ _ ART

Answers:

RAMPAGE
RAMPANT
RAMPART 

First five letters: RAMPA
First three letters: RAM
First four letters: RAMP
Last three letters: AGE - ANT - ART
Last four letters: PAGE - PANT -PART

(Additionally, the 2nd, 3rd, and 4th letters make up the same word: AMP)