vào

Alternative forms

 * (no diphthongization)

Etymology
From Northern. Compare the Central-Southern form.

The Northern Old Vietnamese form is attested in Phật thuyết đại báo phụ mẫu ân trọng kinh (佛說大報父母恩重經) as (SV: ), showing that diphthongization already took place in these dialects by then. The Central-Southern form started showing up on texts much later, spelled chiefly as  (SV: ), inherited from unattested non-Northern Old Vietnamese dialects without diphthongization.

The usage of vào (especially in writing) by speakers of Central-Southern dialects can be contributed to borrowing from Northern dialects. On the other hand, the undiphthongized Southern form with palatal initial latter spread to the Northern and Central dialects as an interjection.

Most prepositions in Vietnamese were originally verbs:, , , , , ,.

Verb

 * 1)  to enter
 * 2)  to go southwards in Vietnam
 * 3)  to become a member of; to join
 * 4)  to join in, to participate in
 * 5)  to begin (a new chapter in time)
 * 6)  to abide by, to conform to
 * 7)  to attain, to achieve
 * 8)  to comprehend
 * 9)  (of a ball) to enter the goal
 * 1)  to join in, to participate in
 * 2)  to begin (a new chapter in time)
 * 3)  to abide by, to conform to
 * 4)  to attain, to achieve
 * 5)  to comprehend
 * 6)  (of a ball) to enter the goal
 * 1)  to abide by, to conform to
 * 2)  to attain, to achieve
 * 3)  to comprehend
 * 4)  (of a ball) to enter the goal
 * 1)  to attain, to achieve
 * 2)  to comprehend
 * 3)  (of a ball) to enter the goal
 * 1)  to comprehend
 * 2)  (of a ball) to enter the goal
 * 1)  (of a ball) to enter the goal
 * 1)  (of a ball) to enter the goal
 * 1)  (of a ball) to enter the goal

Preposition

 * 1) in, into, upon
 * 2) during, on
 * 1) during, on
 * 1) during, on
 * 1) during, on
 * 1) during, on
 * 1) during, on