言いいやる

い

や

る

Meanings

1

godan verb (-ru), transitive verb

send word; send a message

Used for conveying a message or sending word to someone, often indirectly or through a third party. Somewhat literary or formal in tone.

Please send my regards.

伝つたえる
伝える is the common, everyday verb for conveying information or messages. 言いやる is more literary and implies sending word, often at a distance or through an intermediary.
知しらせる
知らせる focuses on notifying or informing someone. 言いやる emphasizes the act of sending a message, often with a nuance of indirect communication.

Compound of 言い (the continuative form of 言う, 'to say') and やる ('to send' or 'to do for someone'). The combination yields the meaning 'to send word'.