มะเร็ง

Possibly from common Tai derived compound words หมาก (màak, “blister; rash”) +‎ เรง (reeng, “small”) in the sense of inflaming skin rash.^[1] Cognate with Northern Thai ᩉ᩠ᨾᩣ᩠ᨠᩁᩮ᩠ᨦ (“inflaming tumor on skin”) and Shan မၢၵ်ႇႁဵင်း (màak háeng, “cancerous tumor”). Or, possibly Semi-learned borrowing from Malay merengsa (“irritant; incurable, obstinate, unhealable”).^[2][3] Compare Khmer ម្រេញ (mrɨñ, “cancer; ulcer”).

มะเร็ง • (má-reng)

1. (pathology) cancer.

• → Lao: ມະເຮັງ (ma heng)