Appertain \Ap`per*tain"\, v. i. [imp. & p. p. {Appertained}; p. pr. & vb. n. {Appertaining}.] [OE. apperteinen, apertenen, OF. apartenir, F. appartenir, fr. L. appertinere; ad + pertinere to reach to, belong. See {Pertain}.] To belong or pertain, whether by right, nature, appointment, or custom; to relate. Things appertaining to this life. --Hooker. Give it unto him to whom it appertaineth. --Lev. vi. 5.