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词根:-vert-, -vers-

【词根含义】:转

【词根来源】:来源于拉丁语动词verto, vertere, verti, versus(转)。

【同源单词】:advertise, advertisement, avert, controvert, convert

前缀:ad-

【词根含义】:来,临近;朝,向,趋向;加强意义

【词根来源】:来源于拉丁语前缀ad-。

【同源单词】:adapt, adaptable, adaptation, adaptive, addict

词根词缀:ad-

【来源及含义】Latin: prefix; to, toward, a direction toward, addition to, near, at; and changes to: ac-, af-, ag-, al-, an-, ap-, aq-, ar-, as-, at- when ad- is combined with certain words that begin with the letters c, f, g, l, n, p, q, r, s, and t

【相关描述】The form ad- appears in this form before a vowel and before the consonants d, h, j, m, and v. It is simplified to a- before sc, sp and st.

Before c, f, g, l, n, p, q, r, s, and t; ad- is changed to ac-, af-, ag-, al-, an-, ap-, aq-, ar-, as-, and at-.

In other words, the d of ad usually changes into the same letter as the first letter of the following root or word when it is a consonant: ad-fix becomes affix, and ad-sign becomes assign; therefore, making a double consonant.

Another example includes: attract as with ad-tract (drawn towards); so it has a double t. On the other hand when ad- precedes a vowel, as with adapt, it is simply ad-apt, with one d. For the same reason, there is only one d in adore and adumbrate, because ad- has combined with orare and umbra each of which starts with a vowel.

So, remember: since these Latin words begin with vowels and not consonants, the d of ad does not double as shown in the previous examples.

【同源单词】a capite ad calcem, Ab ovo usque ad mala, Ab uno ad omnes, Abiit ad majores, abjure, accede

词根词缀:-ise

【来源及含义】Latin: a suffix; to act in a certain way; to treat in a certain way; to make into; to treat with; to do; to make; to cause

【相关描述】 Another closely related suffix family with the same meanings, but a different spelling, is located at this -ize unit.

【同源单词】advertise, advisedly, apprise, chastise, comprise, compromise

词根词缀:vers-, vert-, -verse, -version, -version, -versation, -versal, -versary, -vert, vort-, vors-

【来源及含义】Latin: bend, turn

【相关词根词缀】 Inter-related cross references involving word units meaning "bend, curve, turn": diversi-; diverticul-; flect-, flex-; gyro-; meand-; -plex; streph-; stroph-; tors-; tropo-; verg-; volv-.

【同源单词】ad, adversaria, adversary, adversative, adversative, adversatively