词根词缀：auto-, aut-

【来源及含义】Greek: self, same, spontaneous; directed from within

【相关词根词缀】 Inter-related cross references, directly or indirectly, involving word units dealing with "equal, identical, same, similar": emul-; equ-, equi-; homeo-; homo-; iso-; pari-; peer; rhomb-; syn-; tauto-.

【同源单词】ambulatory automatism, autacoid, autacoidal, autaesthesy, autagonistophilia, autantonym

词根词缀：ign-, igni-, ignis-

【来源及含义】Latin: fire, burn

【相关词根词缀】 Cross references of word groups that are related, directly, indirectly, or partly to: "fire, burn, glow, or ashes": ars-, ard-; -bust; cand-, cend-; caust-, caut-; crema-; ciner-; ether-; flagr-; flam-; focus, foci-; fulg-; gehenna-; phleg-; phlog-; pyreto-, -pyrexia; pyr-; spod- (ashes; waste); volcan-.

【同源单词】Ab igne ignem, autoignition, gelignite, igneous, ignescent, ignible

词根词缀：-tion

【来源及含义】Latin: a suffix forming nouns from verbs of condition and action; an act or process: resumption, absorption; state or condition, redemption, exhaustion; something resulting from or otherwise related to an act or process, assumption, friction

【相关描述】This unit is presenting a small fraction of the hundreds of words ending with the suffix of -tion; however, there is a significant number of words which may help everyone have a better understanding and appreciation of the use of this element.

【同源单词】abduction, abjection, ablution, ablution, abolition, abruption