Where does “swordslength” come from?

swordslength (English) comes from English sword, from Middle English sword, from Old English sword, from Old English sweord, from Proto-Germanic swerdą, from Proto-Indo-European swēr- — heavy.

Ancestry of “swordslength”, step by step

swordslength traces back through two separate lines of ancestry.

via English sword

StepLanguageWordMeaning
1EnglishswordA long-bladed weapon with a hilt, and usually a...
2Middle Englishswordsword, sabre; Military might or power
3Old EnglishswordAlternative form of sweord
4Old Englishsweorda sword
5Proto-Germanicswerdąsword
6Proto-Indo-Europeanswēr-heavy

via English length

StepLanguageWordMeaning
1EnglishlengthThe distance measured along the longest dimension...
2Middle Englishlengthelength
3Old Englishlengþulength
4Proto-Germaniclangiþōlongness, length
5Proto-Germaniclangazlong
6Proto-Indo-Europeandlongʰoslong
Every word from Proto-Indo-European swēr- →Every word from Proto-Germanic swerdą →Every word from Old English sweord →