Webster's Revised Unabridged Dictionary · 1913

Pertain

Pertain , intransitive verb

[Old English partenen, Old French partenir, from Latin pertinere to stretch out, reach, pertain; per + tenere to hold, keep. See Per-, and Tenable, and compare Appertain, Pertinent.]

1.
To belong; to have connection with, or dependence on, something, as an appurtenance, attribute, etc.; to appertain; as, saltness pertains to the ocean; flowers pertain to plant life.
Men hate those who affect that honor by ambition which pertaineth not to them. — Hayward
2.
To have relation or reference to something.
These words pertain unto us at this time as they pertained to them at their time. — Latimer