"Tercentenary" is a word in ENGLISH

tercentenary ENGLISH
Definition:

The three hundredth anniversary of any event; also, a
celebration of such an anniversary.

tercentenary ENGLISH
Definition:

Including, or relating to, an interval of three
hundred years.

Few words of positivity

How can a man’s candour be seen in all its lustre unless he has a few failings to talk of? But he had an agreeable confidence that his faults were all of a generous kind—impetuous, arm-blooded, leonine; never crawling, crafty, reptilian.

George Eliot, Adam Bede

WORD SUGGESTIONS
Laugh your heart out.

Why was the cowboy a lot of laughs?He was always horsing around.

tricentenary ENGLISH

A period of three centuries, or three hundred years, also, the three-hundredth anniversary of any event; a tercentenary.

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