Linger or linger means to stay on after it is time to leave; to be reluctant to go, or to take much longer than usual to go--
He likes to linger over a cup of coffee after dinner.
The aroma may linger for as long as a day or two.
Those two can linger in the doorway for hours; they can't bring themselves to say good-bye.
Malinger or malinger means to feign illness to avoid work--
Private, if you malinger in this outfit, I'll have you in the stockade.
If he said he didn't feel well, his mother allowed him to malinger, and kept him home from school.
Now that you know that, you can say--
"He was tempted to malinger--to call in sick, and use the morning to linger over a good breakfast."