This rare kanji has no clear standalone meaning. Treat its meaning as uncertain.
檛 combines 木 (tree/wood) with 過 as a phonetic component. The exact historical development is uncertain, but it likely originally referred to a wooden object or tool.
A wooden (木) thing that goes past (過) — perhaps a staff or cane you use to move along. The shape suggests something made of wood.
For タ, imagine tapping a wooden staff on the ground: tap -> タ, and the staff is made of wood (木).