suru verb (special), intransitive verb
be thirsty; be dry
Literary or formal verb for being thirsty or dry. In modern Japanese, 喉が渇く (のどがかわく) is far more common for thirst.
砂漠では水がなく、旅人はひどく渇した。
In the desert, without water, the traveler became terribly thirsty.
彼の唇は乾き、
His lips were dry and his throat was parched.