thừa

Etymology 1
. The reading fails to retain the final consonant in, which seems to be unique to Vietnamese (compare 🇨🇬, 🇨🇬, 🇨🇬 and 🇨🇬). The one that does,, only occurs in the word or colloquial adjective. This failure to retain the final consonant also occurs for thừa below.

Haudricourt (1954) suggested that is a.

Adverb

 * 1)  more than necessarily said

Etymology 2
.

Verb

 * 1)  to take advantage of (an opportunity); to utilise; to avail oneself of

Verb

 * 1) to inherit; to receive