spore stem of the common horsetail (スギナ (sugina)), sometimes eaten as food

筑紫: Tsukushi, an ancient province in Japan, roughly equivalent to modern Kyūshū

stem or continuative form of つくす (tsukusu) [godan]

child

Alternative spelling of 摘まむ: to pinch, to hold

to pluck; to pick; to trim

park

a dolphin erected as a daybeacon or daymark: a navigational marker indicating the bounds of a water channel / allusion to 尽くし (tsukushi, “exhausting”)

澪標: dolphin (structure used to indicate bounds of a water channel)

child's naive mind, child's juvenile mind