Where does “re-swear” come from?

re-swear (English) comes from English re, from English reinsurance, from English re-, from Middle English re-, from Old French re-, from Latin rĕ-, from Latin prōdūcō, from Latin prō- — passed , crossed.

Ancestry of “re-swear”, step by step

re-swear traces back through two separate lines of ancestry.

via English re

StepLanguageWordMeaning
1EnglishreAbout, regarding, with reference to; especially...
2EnglishreinsuranceInsurance purchased by insurance companies that...
3Englishre-again, anew; a completive or intensification of...
4Middle Englishre-
5Old Frenchre-re- again; once more
6Latinrĕ-back, backwards
7Latinprōdūcōto lead or bring forth, forward or out
8Latinprō-forward direction, forward movement
9Proto-Italic*pro-pro- see the Latin entry for further meanings
10Proto-Indo-Europeanpro-toward, forward
11Proto-Indo-Europeanpor-to give birth; forward, through; going, passage
12Proto-Indo-Europeanper-before, in front; first; to go through
13Proto-Indo-Europeanpr̥tóspassed , crossed

via English swear

StepLanguageWordMeaning
1EnglishswearTo take an oath, to promise; To use offensive,...
2Middle EnglishswareAlternative form of square; A response to a query...
3Old Englishswaruan oath, vow
4Proto-Germanicswarōa solemn statement or affirmation; oath; vow
5Proto-Indo-Europeanswer-to ache; to fester; wound; injury
Every word from Proto-Indo-European pr̥tósEvery word from Proto-Indo-European per-Every word from Latin rĕ-