Rabbinical
Rabbinical is an English adjective meaning related to rabbis or the rabbinate, the office and authority of Jewish religious leaders. It is used to describe aspects of Jewish law, education, and leadership that arise from the rabbinic tradition rather than directly from the biblical text. The term derives from rabbi with the suffix -ical and has been in use in English since the early modern period.
In practice, rabbinical authority refers to the right or responsibility to interpret and decide Jewish law
The relationship between rabbinical and rabbinic is nuanced; rabbinical is commonly used to denote the office,
See also: Rabbinate, Rabbi, Rabbinic Judaism, Semicha, Halakha.