{i} upper-case letters of a particular ancient rounded style; writing in the uncial style
{s} of or pertaining to upper case letters of a particular rounded style which was prevalent in Greek and Latin manuscripts from about 400 A.D. to 800 A.D., ancient writing style from which capital letters were derived
a style of orthography characterized by somewhat rounded capital letters; found especially in Greek and Latin manuscripts of the 4th to 8th centuries relating to or written in majuscule letters (which resemble modern capitals); "uncial letters
The letters are somewhat rounded, and the upstrokes and downstrokes usually have a slight inclination