1) proud; quarrelsome (applied to Egypt)
2) large; extended (name of a woman)
Insolence; pride, a poetical name applied to Egypt in Ps. 87:4; 89:10; Isa. 51:9, as "the proud one....
Easton's Bible Dictionary
I. a poetical name of Egypt, (Psalms 89:10; Isaiah 51:9) signifying "fierceness, insolence, pride."...
William Smith's Bible Dictionary