查询结果:

adj. 向南的;(指风)从南面来的
adv. 向南地;(指风)从南面来地 

拆分: south南 + -erly形容词或副词词尾,方向  

例:
adj.
the most southerly of the Greek islands. 希腊群岛的最南端。 
The ship was on a southerly track. 船正向南行驶 
adv.
The wind had backed southerly. 风向南逆转。