Where does “seastrand” come from?

seastrand (English) comes from English sea, from Middle English see, from Old English sǣ, from Proto-West Germanic saiwi, from Proto-Germanic saiwiz, from Proto-Germanic sīhwaną, from Proto-Indo-European seykʷ-, from Proto-Indo-European sey- — to be wet; dribble; run; to stretch one's arm;...

Ancestry of “seastrand”, step by step

seastrand traces back through two separate lines of ancestry.

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;...

via English Strand

StepLanguageWordMeaning
1EnglishStrand(as "the Strand") A street in Westminster running from Trafalgar Square to Fleet Street
2Middle Englishstrandbeach, shoreline
3Old Englishstrandbeach; shore
4Proto-Germanicstrandōedge; rim; shore, strand
5Proto-Indo-European(s)trAnt-strand, border, field
6Proto-Indo-Europeansterh₃-to spread, extend, stretch out
7Proto-Indo-Europeanster-sterile, infertile
Every word from Proto-Indo-European sey-Every word from Proto-Indo-European seykʷ-Every word from Proto-Germanic sīhwaną