| 笃 | dǔ shǒu | to comply faithfully / sincerely abiding by | 
| 笃 | dǔ | (bound form) sincere; genuine / (bound form) (of an illness) serious | 
| 守 | shǒu | to guard / to defend / to keep watch / to abide by the law / to observe (rules or ritual) / nearby / adjoining |