Pertain
Pertain is a former commune in the Somme department in Hauts-de-France in northern France. On 1 January 2017, it was merged into the new commune Hypercourt.
Wikipedia
Appertain (verb)
To belong to or be a part of, whether by right, nature, appointment, or custom; to relate to.
Appertain (verb)
To belong as a part, right, possession, attribute, etc..
Pertain (verb)
to belong to or be a part of; be an adjunct, attribute, or accessory of
Pertain (verb)
to relate, to refer, be relevant to
Pertain (verb)
To apply; to be or remain in place; to continue to be applicable
Wiktionary