First, as to the word “Tu,” pronounced “too” in the name “Tu B’Shevat.” “Tu” is constructed from the Hebrew letters “tet” and “vav.” “Tet” is the ninth letter in the Hebrew alphabet; “vav” is the sixth. Nine + Six = Fifteen. Also, “tet” is a consonant, making the “te” sound; “vav” is a vowel, which