scius -a -um

1. 1

   knowing, cognizant

   = cōnsciēns= cognōscēns= cōnscius= sciēns ↔ ignārus↔ ignōrāns↔ īnscius↔ nesciēns↔ nescius↔ expers

2. 2

   [with genitive ‘about something’; or with ablative gerund ‘about doing something’] knowledgeable

   = gnārus= doctus= perītus= sapiēns