既き習しゅう

noun which may take the genitive case particle 'no', noun, noun or participle which takes 'suru', transitive verb

already learned; previously studied

Used primarily in educational contexts to refer to material that has already been covered or learned. Often appears as a noun modifier (既習の) or with する to mean 'to have already learned'.

• 既き習しゅうの内ない容ようを復ふく習しゅうしておいてください。

  Please review the material you have already learned.

• この問もん題だいは既き習しゅう事