ทรงเจริญ(song jà-rern)

Meanings

3VerbC1

[to] prosper; grow; flourish (royal)

royal-usage verb: to prosper, grow, or flourish; used only with a monarch or royalty (e.g., พระองค์ทรงเจริญพระชนมายุ).

Examples

Today is the birthday on which the princess grows to the age of 36 (three cycles of 12 years).