From Hindupedia, the Hindu Encyclopedia
By M. A. Alwar
Empty barren land.
Iriṇam is a neutral form.
It is derived from "ṛcchatīti" which means 'That which goes'.
It can be split as ṛ gatiprāpaṇayoḥ+inan.
Usage in Manu Smriti
It is used to in the following statement:
“Like a sower who sows seed in barren land and does not get any fruit”.
- Shabdakalpadrumah by Raja Radhakantdev, Varadaprasada Vasu, Haricarana Vasu