Word starting with P that indicates strengthening of a bond?

Question

I'm currently writing a very much tongue in cheek book which involves ancestors bonding with newborns. There is something in my book that I currently refer to as Burial Soil that I'm trying to give a more scientific name for. Basically, it's what made the ancestral bond possible and can strengthen it when ingested.

Since it's tongue in cheek, I want something that has the same abbreviation AP as Applied Phlebotinum, a literary device that makes the plot move forward.. The A is easy, I can use Ancestor or a derivative word for that, but the P is somewhat harder. I considered Plotinum or something similar and might use that if nothing better comes up here, but I'm hoping for something that is more indicative of bonding and/or strengthening of a bond. It should also preferably have earthy connotations, since it's soil.

Example sentence: 3300 years ago, an ancient urnfield was turned into Ancestral {Word here} in what we call the Gallitrix event, kickstarting our civilization.

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After reading the answers, I decided to use "pactite" as the name for the material itself. Since the person who recommended the word pact didn't post this as an answer, I decided to accept the answer that mentioned "to permeate", because I could use this for another aspect of the central theme as well.

Answer 1

Consider these two definitions of permeate

1. to penetrate or pervade (a substance, area, etc) a lovely smell permeated the room
2. to pass through or cause to pass through by osmosis or diffusion to permeate a membrane

You could use the standard noun form, permeation. Or if you wanted a neologism that suggests a substance having this quality, you could try permeatonium or permeatite.

Answer 2

You might want to consider percolate.

: [no object] (of a liquid or gas) filter gradually through a porous surface or substance: the water percolating through the soil may leach out minerals

: (of information or an idea or feeling) spread gradually through an area or group of people: this issue has percolated into the public consciousness OED

Answer 3

Here's a suggestion, though not exactly related to strengthening of bonds, it indicates kinship.

Propinquity

noun

1. nearness in place; proximity.

2. nearness of relation; kinship.

3. affinity of nature; similarity.

4. nearness in time.