| Nominativ | familiarissimus, familiaris, familiarissimae, familiarissime, familiarissimis, familiarissimos, familiare, familiarissima, familiarissimam, familiarissimi, familiarissimo, familiarissimum | familiareis, familiares, familiaria, familiaresque, familiaricae |
| Genitiv | familiarissimus, familiaris, familiarissimae, familiarissime, familiarissimis, familiarissimos, familiaricae, familiarissimum, familiarissima, familiarissimam, familiarissimi, familiarissimo | familiarium, familiarum |
| Dativ | familiariora, familiari, familiaritis, familiaricae | familiaribus |
| Akkusativ | familiarem, familiare | familiarissimum, familiarissima, familiarissimam, familiarissimi, familiarissimo, familiareis, familiarissimus, familiaris, familiarissimae, familiarissime, familiarissimis, familiares, familiarissimos, familiaria, familiaricas, familiaresque |
| Ablativ | familiariora, familiari, familiare, familiaritis | familiaribus |
| Vokativ | familiarissimus, familiaris, familiarissimae, familiarissime, familiarissimis, familiarissimos, familiare, familiarissimum, familiarissima, familiarissimam, familiarissimi, familiarissimo | familiares, familiaria, familiaresque, familiaricae |
