"Belletristical" is a word in ENGLISH

Of or pertaining to commerce; carrying on or occupied with commerce or trade; mercantile; as, commercial advantages; commercial relations.

Of, pertaining to, or designating, certain strata which occupy an intermediate position between the Eocene and Miocene periods.

Of or pertaining to stipules; resembling stipules; furnished with stipules; growing on stipules, or close to them; occupying the position …

Especially, pertaining to, or derived from, one's own consciousness, in distinction from external observation; ralating to the mind, or intellectual …

Occupying the same time; pertaining to, or having the properties of, a tautochrone.