词根：-lumin-, -luc-, -lustr-

【词根含义】：光,照

【词根来源】：-lumin-来源于拉丁语动词lumino, luminare, luminavi, luminatus(光,照)或拉丁语名词lumen, luminis, n(日光); -luc-来源于拉丁语动词luceo, lucere, luxi, -(发光)或拉丁语名词lux, lucis, f(光); -lustr-来源于拉丁语动词lustro, lustrare, lustravi, lustratus(照明); 可追溯到原始印欧语leuk, louk, luk。

【同源单词】：illuminance, illuminate, illuminati, illumination, illumine

前缀：il-, in-, ir-, im-

【词根含义】：不,无,非;入,向内

【词根来源】：(il-用于l前;im-用于b, m, p前;ir-用于r前;in-用于其它情况)   来源于拉丁语in。

【同源单词】：illegal, illegality, illegitimate, illiterate, illogical

词根词缀：in-2

【来源及含义】Latin: in, into, within, inside, on, toward [il-, ir-, im-], in, into, etc.: include, incur, invade; also, used intensively, as in the words inflame and inflammable, or without perceptible force.

【相关描述】The in- changes or is assimilated to il- before l, as with "illuminate", to im- before b, as with "imbibe"; before m, as with "immediate"; before p, as with "implant"; and to ir- before r, as with "irrigate".

The form generally remains unassimilated in words formed in English; such as, inbreed.

Don't confuse this in-², meaning "in, into, within", etc. with the Latin prefix in-¹ meaning "not" nor with the prefix for English-origin words in-³ meaning "in, into; within".

【同源单词】illuminate, imbibe, immigrate, import, inaugurate, incalescent

词根词缀：lumen-, lumin-, lum-

【来源及含义】Latin: light, shine; torch, lamp; heavenly body

【相关词根词缀】 Etymologically related "light, shine, glow" word families: ethero-; fulg-; luco-; luna, luni-; lustr-; phengo-; pheno-; phospho-; photo-; scinti-, scintill-; splendo-.

【同源单词】autoluminescence, bioluminescence, bioluminescent, cathodoluminescence, cathodoluminescence, chemiluminescence labeling