flower
薿 is a rare kanji that centers on a flower, specifically one that is lush or flourishing. Its standalone meaning is narrow and tied to botanical abundance.
薿 combines the grass radical 艹 with the phonetic component 疑. The exact historical development is uncertain, but it likely originally described lush, flourishing vegetation.
The grass top 艹 sits above 疑, which looks like a person with a big head and a walking stick. Picture a person standing in a field of flowers, looking around doubtfully because the flowers are so lush and abundant.
For ギ, imagine a field of flowers so lush that it makes you giggle with delight: giggle -> ギ, and the flowers are flourishing.