-wj

-w (“masculine plural ending”) + -j (“dual ending”).

• (modern Egyptological) IPA^(key): /wi/
  • Conventional anglicization: -wi

1. Used to form regular masculine dual forms of nouns and adjectives
2. Attaches to the adjective in an adjectival predicate to give its clause exclamatory force

Alternative hieroglyphic writings of -wj  

-wj	-w

This dual suffix is also often represented by writing the phonetic or determinative glyph twice, e.g. tꜣwj:

• Loprieno, Antonio (1995) Ancient Egyptian: A Linguistic Introduction, Cambridge: Cambridge University Press, →ISBN, page 60
• James P[eter] Allen (2010) Middle Egyptian: An Introduction to the Language and Culture of Hieroglyphs, 2nd edition, Cambridge: Cambridge University Press, →ISBN.