R / rĕtardātĭo
noun

rĕtardātĭo

gen. rĕtardātōnis · gender feminine · decl. 3rd
a hindering; delaying; retarding
a hindering, delaying, retarding, Cic. Phil. 5, 11, 30 (with mora).— In plur., Vitr. 9, 1, 6.