knag /nag/

1. A knot in wood
2. A peg

knaggˈiness noun

• armorist
• armorists
• armors
• armory
• armour
• armour-bearer
• armour-bearers
• armour-clad
• armoured
• armourer
• aseptics
• asexual
• asexualities
• asexuality
• asexually
• as far as
• as far as I can see
• as far as it goes
• as far as one can tell
• as fit as a fiddle
• as for
• as from
• Asgard
• as good as
• as good as gold