1. Root

 h₃ou̯st

2. Lexical meanings

 DE: Lippe, Mund

3. Comparative evidence

4. Formally comparable roots

 h₃eu̯, h₃u̯eldʰ, h₃u̯erdʰ, h₃u̯er, h₃u̯ath₂, h₃u̯ei̯g

5. Formally/Semantically comparable roots

6. Revised root variants

7. Comments

8. References

NIL = Wodko Dagmar S., Britta Irslinger, Carolin Schneider (eds.). 2008. Nomina im Indogermanischen Lexikon. Heidelberg: Winter.