しいしい

suffix

while doing repeatedly; over and over

Suffix attached to the continuative form of a verb (or a noun that takes する) to indicate doing something repeatedly or continuously. Often implies a sense of persistence or monotony.

• 彼かれは謝あやまりしいしい、部屋へやを出でて行いった。

  He left the room while apologizing over and over.

• 練れん習しゅうしいしい、少すこしずつ上じょう達たつした。

  I improved little by little while practicing repeatedly.