Where does “lap joint” come from?

lap joint (English) comes from English joint, from Middle English upon, from Middle English up-, from Old English ūp-, from Old English ūp, from Proto-Germanic upp, from Proto-Germanic ub, from Proto-Indo-European upó.

lap joint (English): A joint made by securing together two overlapping...

Definitions

  1. A joint made by securing together two overlapping...

Ancestry of “lap joint”, step by step

lap joint traces back through two separate lines of ancestry.

via English joint

StepLanguageWordMeaning
1EnglishjointDone by two or more people or organisations...
2Middle Englishuponupon
3Middle Englishup-
4Old Englishūp-up-
5Old Englishūpup, from above
6Proto-Germanicuppup, upwards
7Proto-Germanicubunder
8Proto-Indo-Europeanupóunder, below
9Proto-Indo-Europeanh₃ewp-

via English lap

StepLanguageWordMeaning
1EnglishlapThe loose part of a coat; the lower part of a...
2Middle Englishlappento wrap, fold
3Old Englishlapianto lick, lap up, suck
4Tagaloglapijoining or attaching a part to a whole; affix
5Spanishlápizpencil
6Italianlapispencil; sanguine
7Latinlapisa stone; a milestone; a boundary stone
8Proto-Italic*lapetsstone
Every word from Proto-Indo-European h₃ewp-Every word from Proto-Indo-European upóEvery word from Proto-Germanic ub