Atthvan, pronounce Ought-won, is the word for eighth. Guru Har Krishan is the eight guru of the Sikhs.
In Gurbani, the Sikh scripture of Guru Granth Sahib, the term pahar represents a watch, or unit of three hours, so atth pahar represents a twenty four hour period of time:
"Atthee peharee atth khandd naavaa khandd sareer ||
During the eight watches, destroy the eight (three qualities plus five evils) and the ninth, mortality (egoism) is conquered." SGGS||146
In the Sikh scripture asatt is also used in conjunction with the number eight and usually references sidhic, or yogic powers:
"Sagal padaarath asatt sidh naam mehaa ras maahe ||
All wealth and the eight miraculous powers are contained in the sublime essence of the supreme name." SGGS||203
According to Manmohan Singh in the appendix of his eight volume Steek, or translation of Sikh scripture, the asatt sidh, or eight supernatural powers are:
- Shape shift into the appearance of another.
- Increase or shrink body size.
- Make the body microscopic.
- Increase in heaviness.
- Be all persuasive.
- Read the minds of others.
- Ability to fulfill desires.
- Produce or obtain a desired object.
- Asatt saaj saaj puraan - eight chapters of the Puranas (Vedic scripture).
- Asatt dhaath - eight metals.