godan verb (-su)
write to; send word to; hand over (official business)
Humble verb used when the speaker or in-group member communicates with or delivers something to a superior or outsider. Often used in formal or business correspondence.
先方に申し遣わしましたので、ご安心ください。
I have sent word to them, so please rest assured.
この書類
Please hand over these documents to the person in charge.