(personal) accusative of er; him, it (masculine, direct object). / (personal) (obsolete) dative of sie; them (indirect object).

(Christianity) God rest his soul; God have mercy on his soul (blessing used when mentioning a beloved deceased male person)

For non-idiomatic uses, see the individual lemmas. / in his birthday suit (naked)

(personal) dative of sie; them, to them.

(personal) dative of Sie: you, to you (indirect object; addressing politely or formally one person)

(formal singular) how are you