From חָכָם (ḥachám, “smart, wise”) + ־לוֹג (log, “-(o)logist”), thus literally a smartologist.
חָכְמוֹלוֹג • (khokhmológ, khakhmológ) m (plural indefinite חַכְמוֹלוֹגִים, feminine counterpart חַכְמוֹלוֹגִית)