Where does “seahawk” come from?

seahawk (English) comes from English hawk, from English hawker, from Middle Low German hȫker, from Old High German huchan, from Proto-Germanic *hūkan-, from Proto-Germanic *hūkkan-, from Proto-Germanic *huk(k)ōn-, from Proto-Indo-European *kuk-néh₂ — flare up, glow; white; to glow, burn, lighten.

seahawk (English): A rapacious gull-like bird of the genus...

Definitions

  1. A rapacious gull-like bird of the genus...

Ancestry of “seahawk”, step by step

seahawk traces back through two separate lines of ancestry.

via English hawk

StepLanguageWordMeaning
1EnglishhawkA diurnal predatory bird of the family...
2EnglishhawkerA peddler, huckster, who travels about to sell...
3Middle Low Germanhȫkerpeddler
4Old High Germanhuchan
5Proto-Germanic*hūkan-
6Proto-Germanic*hūkkan-
7Proto-Germanic*huk(k)ōn-
8Proto-Indo-European*kuk-néh₂
9Proto-Indo-Europeanḱewk-flare up, glow; white; to glow, burn, lighten

via English sea

StepLanguageWordMeaning
1EnglishseaA large body of salt water; A lake, especially if...
2Middle Englishseesea, ocean; A body of water, a lake; seat, chair
3Old Englishsea, lake
4Proto-West Germanicsaiwisea
5Proto-Germanicsaiwizsea, ocean
6Proto-Germanicsīhwanąto filter
7Proto-Indo-Europeanseykʷ-to moisten; to filter
8Proto-Indo-Europeansey-to be wet; dribble; run; to stretch one's arm;...
Every word from Proto-Indo-European ḱewk-