Gustaw
[ɡʊsˈtɑːv]Meaning
Polish form of Gustav, a male given name of Old Swedish origin.
Background Story
Gustaw is the Polish form of Gustav. The name is traditionally explained as Old Swedish göt, the Geats, plus staf, staff, though no such name is recorded in Old Norse. It is more probably a Swedish rendering of Old Polish and north-west Slavic Gostislav, from Proto-Slavic gostь, guest, and slava, glory.
Temperament

Related Names
Gallan
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Baalos
Baldur
German and Icelandic form of Balder, from Old Norse Baldr, from the adjective baldr, 'brave'.
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Danish diminutive of Bjørn, from bjare, "bear".
Canute
Anglicized form of the Old Norse name Knut
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Anglicised form of the Irish word caiseal, meaning "stone fort"
Conall
Means "rule of a wolf", from Old Irish cú "hound, dog, wolf" and fal "rule"
Cormac
From old irish cormacc, of uncertain meaning; possibly corb "chariot" plus macc "son"