เพดาน

• พิดาน

Borrowed from Middle Khmer ពិតាន (bitāna), ពីតាន (bītāna), ពិយតាន (biyatāna), ពីយតាន (bīyatāna), ពិទារ (bidāra), ព្ភិតាន (bbhitāna), ភីត្តាន (bhīttāna), វិតាណ (phtāna), វិតាន (vitāṇa, “protective cloth covering mounted on poles above a sacred person or object: canopy, awning”), from Angkorian Old Khmer vitāna (ibid.), from Pali vitāna (“canopy; awning”) or Sanskrit वितान (vitāna, “spreading out; expansion; extension; awning; canopy; etc”). Cognate with Modern Khmer ពិតាន (pitaan, “ceiling; canopy”), Lao ເພດານ (phē dān), ພິດານ (phi dān).

เพดาน • (pee-daan)

1. ceiling.
2. upper limit; maximum (of expense, etc).
3. (mathematics) ceiling function.