Does knowing a word for an emotion cause a person to feel the emotion more frequently?
The answer would be no. To go along with the comments babies feel emotions however do not know words. As they grow adults help them organize their emotions for example a baby cries with frustration and anger because they may be hungry as you get older you have learned how to deal with that experience. As it is impossible to feel any emotion without having a thought first, emotions stem from what we are thinking which would be mostly concepts we don't think in random words. Therefore if we like to be happy we will think about things or do things that make us such. We are made to feel a wide range of emotions and they come and go. Knowing a word is not going to help someone know happiness better. Learning to control thoughts would be much more helpful. Just as a baby feels all emotions it does not yet understand them. What good would a huge vocabulary be if we could not put together concepts.