Man pages matching name libmawk_initialize_stage in section 3libmawk:

libmawk_initialize_stage.3libmawk.en	debian 10 / libmawk1
libmawk_initialize_stage.3libmawk.en	debian 11 / libmawk1
libmawk_initialize_stage.3libmawk.en	debian 12 / libmawk1
libmawk_initialize_stage.3libmawk.en	debian 13 / libmawk1t64