fighter

What it means

1. A person who fights; a combatant.
2. A warrior; a fighting soldier.
3. A pugnacious, competitive person.

In a sentence

Little weapons / Over the phone / They like to threaten / The life that I know / They say "Get over here and get into the ring" / But I'm not really much of a fighter

2011, Lenka, Ben H. Allen, “Roll with the Punches”, in Two, performed by Lenka

Where it comes from

1. Old Englishfeohtere
2. Middle Englishfightere
3. Englishfighter

From Middle English fightere, feghtere, from Old English feohtere. Equivalent to fight + -er.