flourish, prosperity, honour, glory, splendour
榮 centers on vibrant flourishing: prosperity, honour, glory, and splendour all describe a state of thriving brilliance and high esteem.
榮 is the traditional form of modern 栄. It combines 木 (tree) with an upper element that likely depicts flames or flowers, suggesting a tree in full bloom or ablaze with glory. The exact origin of the upper component is uncertain, but the overall image conveys flourishing and splendour.
Picture a tree (木) crowned with twin flames (火火) under a cover (冖), like a glorious, blazing torch of prosperity. The tree flourishes in radiant honour.
For エイ, imagine a grand tree flourishing in the month of May (エイ sounds like 'A' in 'May'): May -> エイ, and the tree's splendour peaks in spring.