English boo

← English boh (mention)

← English peekaboo (link)

← English cheer (link)

← English cheer (link)

← English beau (mention)

← Proto-Indo-European *bʰewgʰ- (root(en/sco))

→ English bo (link)

→ English cheer (link)

→ English cheer (link)

→ English mew (link)

→ English mew (link)

→ English peekaboo (affix)

→ English boh (mention)

→ English booer (suffix)

→ English bug-a-boo (compound)

→ English boobird (blend)

→ English booable (suffix)

→ English boo-hooray (mention)

→ Norwegian Nynorsk bu (borrowed)