后綴-acious = 多…的,充滿…的,有…傾向的,具有…的特點
英語詞源：adjectival word-forming element meaning "given to, inclined to, abounding in," from Latin -aci- (nominative -ax), noun ending used with verbal stems, + -ous.
nclined to, given to, or having as a capacity.
[Originally and mainly from Latin words in -ax or -ac-, plus
Words in -acious are adjectives. Words ending in -acity are corresponding nouns of quality or state (audacity, sagacity).
Examples of words in -acious
All examples derive from Latin.
| audacious | willing to take risks | audax, bold |
| capacious | having a lot of space inside, roomy | capax, capac-, capable |
| efficacious | successful in producing a desired result | efficax, from efficere, to accomplish |
| loquacious | talkative | loquax, from loqui, talk |
| mendacious | not telling the truth | mendax, lying, related to mendum, a fault |
| pertinacious | holding firmly to an opinion or a course of action | pertinax, holding fast |
| pugnacious | eager or quick to argue or fight | pugnax, from pugnare, to fight |
| rapacious | aggressively greedy or grasping | rapax, from rapere, to snatch |
| sagacious | showing good judgement | sagax, wise |
| tenacious | holding fast to something, not easily giving up | tenax, from tenere, to hold |
| veracious | speaking or representing the truth | verax, from verus, true |
| vivacious | attractively lively and animated | vivax, lively or vigorous, from vivere, to live |
| voracious | wanting or devouring great quantities of food | vorax, from vorare, to devour |
同綴詞：
1.loquacious [loqu 言 + -acious 形容詞后綴→]
adj. 多言的
2.capacious [cap 拿，抓住 + -acious 形容詞后綴→]
adj. 容量大的
3.veracious [ver 敬畏 + -acious 形容詞后綴→]
adj.真實的,可靠的
4.mendacious [
adj. 欺騙的,扯謊的