[384]. (2.) The first part of a determinative may represent the oblique case of a noun, generally a substantive; the second part is a noun or verb stem. These compounds are called Objectives: as,
Accusative of direct object ([1132]), armi-ger, i.e. quī arma gerit, armour-bearer; dative of indirect object ([1208]), man-tēle, i.e. manibus tēla, handkerchief, napkin; genitive ([1227]), sōl-stitium, i.e. sōlis statiō, solstice; ablative instrumental ([1300]), tubi-cen, i.e. quī tubā canit, trumpeter; locative ([1331]), Troiu-gena, i.e. Troiae nātus, Troy-born; ablative locative ([1350]), nocti-vagus, night-wandering; monti-vagus, mountain-ranging.
[385]. Possessives are adjective compounds in which the meaning of the second part is changed. The second part of a possessive is always formed from a substantive, qualified by the noun, adverb, or inseparable prefix of the first part, and the whole expresses an attribute which something has: as,
longi-manus, longarms, long-armed; miseri-cors, tender-hearted; bi-linguis, two-tongued; magn-animus, greatheart, great-hearted; im-berbis, beardless.
[386]. Apparent Compounds are formed:
[387]. (1.) By two nouns combined, one with an unchanging case ending, the other with full inflections: as, aquae-ductus, aqueduct; senātūs-cōnsultum, decree of the senate; pater-familiās, father of a family; vērī-similis, like the truth; in these words, aquae, senātūs, familiās, and vērī are genitives, and remain genitives, while the other part of the compound is declinable.
[388]. (2.) By a substantive with an adjective habitually agreeing with it, both parts being declined: as, rēs pūblica, the common-weal; rēs gestae, exploits; iūs iūrandum, oath; pecūniae repetundae, money claim.
[389]. (3.) By nouns, chiefly substantives, in the same case placed loosely side by side and making one idea. The two words may be used: (a.) Copulatively: as, ūsus-frūctus, use and enjoyment; pactum-conventum, bargain and covenant; duo-decim, two and ten, twelve; or (b.) Appositively: one word explaining the other ([1045]): as, Iuppiter, Jove the Father ([94]; [133]); Mārspiter, Mars the Father, for Mārs pater.
[390]. (4.) From an original combination of an oblique case with a preposition: as, prōcōnsul, proconsul, from prō cōnsule, for a consul; ēgregius, select, from ē grege, out of the herd; dēlīrus, astray, mad, from dē līrā, out of the furrow.