Where does “semiperpetual” come from?

semiperpetual (English) comes from English perpetual, from Old French perpetuel, from Latin perpetualis, from Latin perpetuus, from Latin -uus, from Proto-Italic *-wos, from Proto-Indo-European -wós — Creates adjectives from verb stems.

semiperpetual (English): Almost perpetual; permanent during some periods

Definitions

  1. Almost perpetual; permanent during some periods

Ancestry of “semiperpetual”, step by step

semiperpetual traces back through two separate lines of ancestry.

via English perpetual

StepLanguageWordMeaning
1EnglishperpetualLasting forever, or for an indefinitely long...
2Old Frenchperpetuel
3Latinperpetualisthat holds everywhere, universal, general
4Latinperpetuusperpetual, continuous, uninterrupted, constant,...
5Latin-uusforms adjectives on verbal stems
6Proto-Italic*-wos
7Proto-Indo-European-wósCreates adjectives from verb stems

via English semi

StepLanguageWordMeaning
1EnglishsemiA semi-detached house; A semitrailer; a...
2Englishsemi-half; partial, incomplete; somewhat, rather,...
3Latinsēmi-half
4Proto-Indo-Europeansēmihalf; partially
Every word from Proto-Indo-European -wósEvery word from Latin -uusEvery word from Latin perpetuus
semiperpetual — Etymology, Origin & Word History | Etymology Explorer