thâm

• (Hà Nội) IPA^(key): [tʰəm˧˧]
• (Huế) IPA^(key): [tʰəm˧˧]
• (Hồ Chí Minh City) IPA^(key): [tʰəm˧˧]

Sino-Vietnamese word from 深.

thâm

1. (literary) deep; profound
2. (of a bodily area) discolored due to lack of sleep, injury, sickness, etc.

   mắt thâm ― black eyes; bruised eyes

3. cunning; insidious

Likely from Sino-Tibetan. Compare Chinese 三 (MC sɑm), Drung vseum, Burmese သုံး (sum:).

thâm

1. (probably obsolete, chiefly pig traders' cant) three

(numerals in pig traders' cant) số đếm trong tiếng lóng lái lợn; chách (“one”), lái/nái (“two”), thâm (“three”), chớ (“four”), kẹo (“five”), mục (“six”), khắp/hấp (“seven”), bét (“eight”), khươm/khơm (“nine”), nạp/lạp (“ten”), ^{(Category: vi:Numerals in pig traders' cant)}