I. pre·nom·i·nal prēˈnämən ə l adjective
Etymology: Latin praenomin-, praenomen + English -al
: of, relating to, or constituting a praenomen
II. pre·nominal (ˈ)prē+ adjective
Etymology: pre- + Latin nomin- nomen name, noun + English -al — more at name
: placed or coming before a noun
the prenominal form of a possessive pronoun