proud, lonely
佗 centers on a state of solitary pride or aloof loneliness: a person who stands apart, whether from self-regard or isolation.
佗 combines the person radical 亻 with 它, which likely contributes a phonetic element. The exact historical development linking the components to 'proud' or 'lonely' is uncertain.
A person 亻 standing beside a snake-like shape 它: imagine someone so proud or lonely they keep a serpent as their only companion.
For タ, picture a proud, lonely person tapping their foot impatiently: tap -> タ, as they wait in solitude.