wooden shoes, clogs
屧 centers on wooden footwear: clogs or wooden shoes. The meanings are concrete and closely related to a specific type of shoe.
屧 combines 尸 (a pictograph of a person or body) with 彳 (step) and 枼 (leaf/wood), suggesting a wooden item for stepping. The exact historical development is uncertain, but the components point to a wooden shoe.
Under the shelter of 尸, imagine stepping 彳 onto wooden leaves 枼: these are wooden clogs or shoes made from wood.
For テイ, picture a wooden clog with a small table (テーブル) attached to the sole: table -> テイ, and the table-like wooden base makes the shoe.