This rare kanji has no clear standalone meaning. Treat its meaning as uncertain.
The historical origin of 眔 is uncertain. It visually contains the net-like component ⺫, but its exact development is unclear.
The top component ⺫ looks like a net or eye, but the overall meaning is unclear. Think of it as a mysterious character with a net-like top.
For トウ, imagine a toe caught in a net: toe -> トウ, and the net-like top 眔 traps the toe.