— arsonous , adj.
/ahr"seuhn/ , n.
Law. the malicious burning of another's house or property, or in some statutes, the burning of one's own house or property, as to collect insurance.
[ 1670-80; arsion- (s. of arsio ) a burning, equiv. to ars- (L ard ( ere ) to burn (cf. ARDENT) + -t ( us ) ptp. suffix) + -ion- -ION ]