preprimary
/prɛˈpraɪmɛrɪ/ or /priːˈpraɪmɛrɪ/Definitions
1. adjective
relating to or occurring before the primary stage or level, especially in education
“The preprimary education system in our country emphasizes social skills development.”
2. noun
the period of education before primary school, typically for children from birth to age 5
“The preprimary school program is designed to prepare children for formal education.”