altess means highness. Lexicurio rates it Sui generis — a strength score of 98 out of 100.
altess is pronounced /ɑlˈtɛs/.
noun
- Highness.“A Swediſh Ambaſſador named Chriſtian Bond arrived here near the ſame time, and was in great ſtate received according to the Amplitude of his Highneſs, and Rolt a Bed-chamberman of this Alteſs was ſent reciprocally to the King of Sweden, but was near quitting the Coſt of his journey by a terrible ſtorm.”