Man pages matching name waddstr in section 3ncurses:

waddstr.3ncurses.en	debian 10 / ncurses-doc
waddstr.3ncurses.en	debian 11 / ncurses-doc
waddstr.3ncurses.en	debian 12 / ncurses-doc
waddstr.3ncurses.en	debian 13 / ncurses-doc