auxiliary adjective
want to; would like to
Formal/literary auxiliary adjective attaching to the -masu stem of a verb. Expresses the speaker's desire to do something. Equivalent to たい in modern colloquial Japanese.
See also: たい
早く春が来たし。
I wish spring would come soon. (formal/literary)
この本を読みたしと思う。
I would like to read this book. (formal/literary)