ad-

Nghĩa (Tiếng Anh)

1. (morpheme) to
2. (morpheme) usually prefixed to verbs, in which cases it often has the effect of intensifying the verbal action

Từ nguyên (Tiếng Anh)

Prefixed form of the preposition ad (“to, towards”). This prefix also appears in other Italic languages, entailing the reconstruction of Proto-Italic *ad- as a prefix.