That's an interesting observation.
Limp & Gimp & Simp & Dimple & Chimp & Wimp...
There is a relation between all these words, and I think it's mainly in how they sound similar to each other, but I think there is also a slight psychological effect when we make the "-im-" sound with our mouth, causing us to feel a vibe of submission or deficiency. There is a similar but not identical effect when we make the sound 'in'.
Of course there are exceptions, for example Pimp has a powerful vibe, albeit with a flawed side. And words like Impact and Impending aren't strictly negative like Impair or Impede, but they do suggest a need for waiting in order for a problem to be solved or a gap to be filled. We need to be careful of not over-reaching. There is a risk we will see patterns because we're looking too hard for them. A kind of 'confirmation bias'. Still, I think you may be onto something.
In some cultures, people chant certain sounds, for example chanting "Om", or reciting the Quran in a strictly prescribed way. This is closely linked to Cymatics.