error CS0103: The name `GetComonent' does not exist in the current context

Please Help I don’t know whats wrong with it

using UnityEngine;
using System.Collections;
using System.Collections.Generic;

public class targetting : MonoBehaviour {
public List targets;
public Transform selectedTarget;

private Transform myTransform;

// Use this for initialization
void Start () {
	targets = new List<Transform>();
	selectedTarget = null;
	myTransform = transform;
	AddAllEnemies();
}

public void AddAllEnemies()
{
	GameObject[] go = GameObject.FindGameObjectsWithTag("Enemy");

	foreach (GameObject enemy in go)
		AddTarget(enemy.transform);
}

public void AddTarget(Transform enemy)
{
	targets.Add(enemy);
}

private void SortTargetsByDistance()
{
	targets.Sort(delegate(Transform t1, Transform t2) { 
		return Vector3.Distance(t1.position, myTransform.position).CompareTo(Vector3.Distance(t2.position, myTransform.position));
		});
}

private void TargetEnemy()
{
	if (selectedTarget == null) {
		SortTargetsByDistance ();
		selectedTarget = targets [0];
	}
	else 
	{
		int index = targets.IndexOf(selectedTarget);

		if(index < targets.Count - 1)
		{
			index++;
		}
		else
		{
			index = 0;
		}
		DeselectTarget();
		selectedTarget = targets[index];
	}
	SelectTarget();
}

private void SelectTarget()
{
	selectedTarget.GetComponent<Renderer>().material.color = Color.red;

	PlayerAttack pa = (PlayerAttack)GetComonent("PlayerAttack");  the problem is here <----

	pa.target = selectedTarget.gameObject;
}

private void DeselectTarget()
{
	selectedTarget.GetComponent<Renderer>().material.color = Color.blue;
	selectedTarget = null;
}

// Update is called once per frame
void Update () {
	if(Input.GetKeyDown (KeyCode.Tab)) {
		TargetEnemy();
	}
}

}

(PlayerAttack)GetComponent(“PlayerAttack”);

you forgot the p