Agni kriya

Agni kriya
breathing exercise manipulating of the diaphragm while the breath is held out.
Agnisar kriya ...

Agni kriya - an advanced breathing exercise involving manipulation of the diaphragm while the breath is held out
Agornatha - divine presence governing the yamas and niyamas ...

See also: Subtle, Kunda, Classical, Sutras, Ahara