diegogarcity
[fr. Diego Garcia, Indian Ocean atoll; after serendipity]
"a term used [at Wordorigins.org] to denote the appearance of another term in multiple sources shortly after you have looked it up in the dictionary" (or first noticed it)

I can understand the 'logic' of serendipity from Serendip, but
the connection between the Indian Ocean atoll and diegogarcity escapes me. The phenomenen itself, I think is not limited to word or terms only, but to objects and types of people and fruits and flowers in the wild as well.

It is a phenomenon of perceptiveness.