yes 3 times
The word Jehovah appears in the text of the Book of Mormon only twice, and one of these is a quote from Isaiah. Words referring to the same being, such as Jesus, Christ, Savior, Redeemer, Son of God, etc. are much more common.
If the answer is directed at the Book of Mormon, the answer is "no." The word "placate" does not appear in this book of scripture.
The word "happy" is found in 10 verses in the Book of Mormon, sometimes being used more than once in a verse.
The word "behold" is used in 1499 verses in the Book of Mormon.
the word repentance is used in 92 verses in the book of mormon.
The word 'endure' is used 12 times in the Book of Mormon.
The word "Christ" appears 71 times in the Book of Mormon.
The word 'vessel' or 'vessels' is used in 14 verses in the Book of Mormon.
The word "word" (or "words") is used in 790 verses in the Book of Mormon. In many of these verses, it is used more than once.You can see a list of verses from the Book of Mormon which contain the word "word" by clicking this link.
The word 'truth' is used in 75 verses in the Book of Mormon.
The word "help" appears 12 times throughout the Book of Mormon, and the word "helped" appears once.
The word "thank" appears 38 times in the Book of Mormon. However the word "thanks" appears 167 times.