Reference for Rosh Hashanah 14:11

רב נחמן בר יצחק אמר ארבעה חדשים ובהן כמה ראשי שנים

There are five?<span class="x" onmousemove="('comment',' The New Year for festivals being on the fifteenth of Nisan.');">⁸</span> - Raba replied: There are four according to all authorities.

Jastrow

Jastrow

Jastrow