/ ˈjɪəli; ˈjɜːli; NAmE ˈjɪrli/ adjective
1.
happening once a year or every year :
Pay is reviewed on a yearly basis.
2.
paid, valid or calculated for one year :
yearly income / interest
► year·ly adverb :
The magazine is issued twice yearly (= twice every year) .
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WORD ORIGIN
Old English gēarlic (see year , -ly ).