词根：pall = pale 苍白无力的;暗淡的;浅色的

 来自拉丁语的pall意为pale。

同源词：

1. appall [让某物变得苍白ap<ad(=to)+pall(=pale)]
  vt．使惊骇
  appalling adj.骇人听闻的
  appallingly adv.令人毛骨悚然地
  The way he beats his dog appalls me. 他打狗的样子令我毛骨悚然。

2. pallid
  adj. 无血色的，苍白的

3. pallor
  n.（脸的）苍白

词根词缀：syphilo-, syphil-, syphili-, syphi-

【来源及含义】Latin: Syphil[us], the eponymous main character of Girolamo Fracastoro's poem "Syphilus sive Morbus Gallicus" [Syphilus, or the French Disease], published at Verona, Italy [1530]

【相关描述】Syphilis is a venereal disease (of which Fracastoro's hero Syphilus, was a victim) and is caused by the microorganism Treponema pallidum.

Syphilus was a shepard whose name literally means a "friend of swine". Perhaps it was derived from Greek syn-, "together", plus philein "to love", or from Greek siphlos, "crippled, maimed". No one seems to know for certain.

【同源单词】antisyphilitic, dermosyphilopathy, neurosyphilis, syphilide, syphilionthus, syphiliphobia

词根词缀：thalam-, thalamo-

【来源及含义】Greek > Latin: inner room, bedchamber; so called by Galen because chambers at the base of the brain were thought to supply animal spirits to the optic nerves; thalamus, the middle part of the diencephalon (the area in the center of the brain just above the brain stem that includes the thalamus and hypothalamus) which relays sensory impulses to the cerebral cortex of the brain

【同源单词】chemopallidothalamectomy, chemothalamectomy, cryothalamectomy, epithalamium, hypothalamic, hypothalamus