Charles E. Sprague

“ We have "golden" derived from "gold," but have no adjectiv
derived from "iron." But in Volapük ,,golüdik, lelik, silefik," are regularly formed from ,,golüd, lel, silef," and in translating from English we must be careful, to distinguish: in phrases like "silver watch," treating "silver " as an adjectiv ; ,,glok silefik." Whole phrases are also rendered by an adjectiv in ik or an adverb in iko the adjectiv being used if the phrase qualifies a noun, the adverb, if it qualifies a verb.
Many words are used both as nouns and as verbs in Volapük and in English. ”

“ The first part of the compound may be considered as the kimafal, and usually the meaning of the compound may be expressed by placing it after the principal word either in the kimafal or in the adjectiv form; pük vola, mon potik, tidel pükas, pük flentik, dog yagik, yel nulik. But the meaning of the compound word is more specialized. Pük vola may mean a language of the world, any language of the world, while volapük means a language understood through the whole world.
In a few compounds instead of a the syllables as, i and o, are used as connectivs, tho' there seems to be no settled rule. ”

“ COMPOUND WORDS In forming compound words the rule of word placing is exactly reversed, and the determinant precedes the determined.
A compound noun is formed by inserting the vowel a between the determining word and the principal word. ”