定義：a signet (as fencing in or protecting from misappropriation); by implication, the stamp impressed (as a mark of privacy, or genuineness), literally or figuratively
字根：a primary preposition denoting (fixed) position (in place, time or state), and (by implication) instrumentality (medially or constructively), i.e. a relation of rest (intermediate between G1519 and G1537)
