KJV Dictionary Definition: thirtieth
thirtieth
THIRTIETH, a. thur'tieth. from thirty. The tenth threefold; the ordinal of thirty; as the thirtieth day of the month.
thirty
THIRTY, a. thur'ty. Thrice ten; ten three times repeated; or twenty and ten. The month of June consists of thirty days. Joseph was thirty years old when he stood before Pharaoh.