In a medium bowl, whisk together olive oil, garlic, lemon juice, thyme, oregano, rosemary, parsley, marjoram, nutmeg, salt, and pepper.
Place the chicken in the marinade, and turn to coat or drench it. Seal the bowl with plastic wrap or place the chicken and marinade in a ziplock bag and refrigerate for at least an hour (preferably overnight).
Using tongs, remove chicken from the marinade and discard the marinade.
Preheat grill to medium-high heat.
Place the chicken on the grill for 4-5 minutes on each side, or until you have a nice char. Turn the chicken occasionally until cooked through. The best way to check for doneness is to use an instant-read thermometer. The internal temperature should read 160℉ (70 ℃). The residual heat will continue cooking it for a few minutes and increase the temperature to 165℉ (74℃). Alternatively, you can cut into the middle to check that it's opaque in the center and the juices run clear.
Remove from grill (or grill pan).
Let it rest for 5 minutes, then serve immediately.