Overpower
Part of speech: verb
Definition: To subdue someone by superior force. To render imperceptible by means of greater strength, intensity etc.
Overwhelm
Part of speech: verb
Definition: To engulf, surge-over and submergeTo overpower emotionally
Example sentence: Let us swell with gratitude and allow it to overwhelm us. It isn't as cliche as we make it; life truly is short. Let's spend it all lavishly wallowing in gratitude.