Night Nocturnal, equinoctial Noise Obstreperous One First Parish Parochial People Popular, populous, public, epidemical, endemical Point Punctual Pride Superb, haughty Plenty Copious Pitch Bituminous Priest Sacerdotal Rival Emulous Root Radical Ring Annular Reason Rational Revenge Vindictive Rule Regular Speech Loquacious, garrulous, eloquent Smell Olfactory Sight Visual, optic, perspicuous, conspicuous Side Lateral, collateral Skin Cutaneous Spittle Salivial Shoulder Humeral Shepherd Pastoral Sea Marine, maritime Share Literal Sun Solar Star Astral, sideral, stellar Sunday Dominical Spring Vernal Summer Estival Seed Seminal Ship Naval, nautical Shell Testaceous Sleep Soporiferous Strength Robust Sweat Sudorific Step Gradual Sole Venal Two Second Treaty Federal Trifle Nugatory Tax Fiscal Time Temporal, chronical Town Oppidan Thanks Gratuitous Theft Furtive Threat Minatory Treachery Insidious Thing Real Throat Jugular, gutteral Taste Insipid Thought Pensive Thigh Femoral Tooth Dental Tear Lachrymal Vessel Vascular World Mundane Wood Sylvan, savage Way Devious, obvious, impervious, trivial Worm Vermicular Whale Cutaceous Wife Uxorious Word Verbal, verbose Weak Hebdomadal Wall Mural Will Voluntary, spontaneous Winter Brumal Wound Vulnerary West Occidental War Martial Women Feminine, female, effeminate Year Annual, anniversary, perennial, triennial

Such are some of the adjectives introduced into our language from other nations.  The list will enable you to discover that when we have no adjective of our own to correspond with the noun, we borrow from our neighbors an adjective derived from one of their nouns, to which we give an english termination.  For example: 

    English Noun. Latin Noun. Adjective.

Boy                Puer                 Puerile
Grief              Dolor                Dolorous
Thought            Pensa                Pensive
Wife               Uxor                 Uxorious
Word               Verbum               Verbal, verbose
Year               Annum                Annual
Body               Corpus               Corporeal
Head               Caput                Capital
Church             Ekklesia (Greek)   Ecclesiastical