The word Ager is misspelled against Agger, a noun meaning "An earthwork; a mound; a raised work."
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Agger has double "gg" is mispronounced as "g"
Remember double 'GG' in between the strings a & er which should not be misspelled with single 'G'
Wrong Spelling:  a-g-er 
Correct Spelling:  a-gg-er 
Explore spell check of Agger to spell without errors.