[1143] τρι-κάρηνος, poet. statt τρικέφαλος, dreihäuptig; Hes. Th. 287; Pind. frg. 70; ϑήρ, Eur. Herc. Fur. 611; Her. 9, 81; Sp., wie Coluth. 14, Luc. Philopatr. 1.
Heiligenlexikon-1858: Kai-Tri
Herder-1854: Tri · Regula de Tri
Meyers-1905: Regŭla de tri · De tri
Pierer-1857: Regula de tri · Regel de tri