Wrath

google

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Old English wrǣththu, from wrāth (see wroth).

wiktionary

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From Middle English wraththe, wreththe, from Old English wrǣþþu(“wrath, fury”), from Proto-West Germanic *wraiþiþu(“wrath, fury”), equivalent to wroth +‎ -th. Compare Dutch wreedte(“cruelty”), Danish vrede(“anger”), Swedish vrede(“wrath, anger, ire”), Icelandic reiði(“anger”). More at wroth.

etymonline

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wrath (n.)

Old English wræððu "anger," from wrað "angry" (see wroth) + -þu, from Proto-Germanic -itho (as in strength, width etc.; see -th (2)).