Yearly

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Old English gēarlic (see year, -ly1).

wiktionary

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From Middle English yeerly, yerely, from Old English ġēarlīc(“yearly, of the year, annual”), equivalent to year +‎ -ly. Cognate with Scots yerelie(“yearly”), Saterland Frisian jierelk(“yearly”), West Frisian jierliks(“yearly”), Dutch jaarlijks(“yearly”), German jährlich(“yearly”), Swedish årlig(“yearly”), Icelandic árlegur(“yearly”).

etymonline

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yearly (adj.)

Old English gearlic "yearly, of the year, annual;" see year + -ly (1).