ἀραχνιόω

A. spin a cobweb, Arist. HA 605b10:—Pass., to be covered with cobwebs, ib. 625a8:—Act. in same sense, Nonn. D. 38.14.

II. form a venous network over, ἡ φλὲψ ἠραχνίωκε τοῦ σπληνὸς ἐναίμοισι φλεβίοισι Hp. Oss. 18.