1. in a beamish manner; with a bright, cheerful, or radiant quality
Usage: literary or whimsical; rare in modern usage; popularized by Lewis Carroll's 'Jabberwocky' (1871)

Examples

• The child smiled beamishly at the birthday surprise.
• She greeted her old friend beamishly after years apart.
• The sun shone beamishly through the morning clouds.
• He spoke beamishly about his recent accomplishments.
• The decorations glowed beamishly in the evening light.