thereunto

Related to thereunto: thereto

there·un·to

T0154900 (thâr′ŭn-to͞o′)adv. Archaic To that, this, or it; thereto.

thereunto

(ˌðərʌnˈtuː; ˌðɛəˈʌntʊ) adv1. to that, unto that2. moreover, in addition to that