Первая составная часть сложных слов, соответствующая по значению словам: три, тройной, например: троеборье, троеженство.
"Sweet mercy is nobility's true badge." William Shakespeare
"It is better to know some of the questions than all of the answers." James Thurber
"This is the most joyful day that ever I saw in my pilgrimage on earth." Donald Cargill
"Life is but thought." Sara Teasdale
