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11.13: Lesson Thirteen

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The Spelling <rr> and Assimilation

1. Here are the twenty words from the previous lesson that all contain <rr>:

& \text{irrigation} && \text{interrupt}\surd && \text{irritate} && \text{underrated}\surd \\& \text{overripe}\surd && \text{conferring}\surd && \text{preferred}\surd && \text{transferring}\surd \\& \text{referred}\surd && \text{scarred}\surd && \text{arrange} && \text{irresponsible} \\& \text{arrest} && \text{correctly} && \text{irregular} && \text{surrendered}\surd \\& \text{arrival}  && \text{corruption}  && \text{correspond}  && \text{surroundings}\surd

You have seen that five of these twenty words have <rr> because of simple addition and five of them have <rr> because of twinning. Find these ten in the list above and cross them off.

2. When the prefixes ad-, com-, and in- are added to stems that start with an <r>, they assimilate to ar , cor-, and ir- .

3. Ten of the twenty words above with [r] spelled <rr> start with an assimilated form of ad-, com-, or in-. Find them, write them in the left column below, and analyze them to show the assimilation that leads to the <rr>:

Word Analysis: Prefix + Stem
irrigation i\cancel{n} + r + rigation
arrest a\cancel{d}+ r + rest
arrival a\cancel{d} + r + rival
correctly co\cancel{m} + r + rectly
corruption co\cancel{m}+ r + ruption
irritate i\cancel{n} + r + ritate
arrange a\cancel{d} + r + range
irregular i\cancel{n} + r + regular
correspond co\cancel{m} + r + respond
irresponsible i\cancel{n} + r + responsible

4. The following words each contain two prefixes and a stem. See if you can analyze them to show where the <rr> comes from:

Word = Prefix^{1} + Prefix^{1} + Stem
incorrect = in + co\cancel{m} + r + rect
unirritable = un + i\cancel{n} + r + ritable
overirrigated = over + i\cancel{n}+ r + rigated
uncorrupted = un + co\cancel{m}+ r + rupted
rearresting = re + a\cancel{d}+ r + resting
nonsuppotive = non + su\cancel{b}+ p + portive
disarranged = dis + a\cancel{d}+ r + rested
irresponsibly = i\cancel{n}+ r + re + sponsibly
unsurprising = un + sur + prising
reninterrupted = re + inter + pret
noninterrupted = non + inter + rupted
disinterested = dis + inter + ested

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1 , 2 , 3 , 4 , 5

Date Created:

Feb 23, 2012

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Apr 29, 2014
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CK.ENG.ENG.TE.1.Basic-Speller.11.13

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