Where does “commonsense” come from?

Common comes from Middle English comun, from Old French sens, from Latin commūnis, meaning shared or held in common, from Proto-Indo-European ḱóm meaning together.

commonsense (English): Alternative form of common-sense; attributive...

Definitions

  1. Alternative form of common-sense; attributive...

Ancestry of “commonsense”, step by step

commonsense traces back through two separate lines of ancestry.

via English common

StepLanguageWordMeaning
1EnglishcommonMutual; shared by more than one; Occurring or...
2Middle EnglishcomunShared, common; belonging to all in a group
3Anglo-Normancomuncommon
4Old Frenchcomuncommon
5Latincommūniscommon, commonplace, ordinary, general, universal, shared, shared alike, of both sides, belonging to two or more together
6Old Latincom(m)oinis
7Proto-Italickommoiniscommon
8Proto-Indo-Europeanḱom-moy-ni-held in common
9Proto-Indo-Europeanḱómbeside, near, by, with
10Proto-Indo-EuropeanḱeDeictic particle, here; Post-positional...
11Middle Englishkyt
12Germankittputty certain kinds of cement used for fixing e.g. window panes
13Old High Germankuti
14Proto-West Germanickwidugum, resin
15Proto-Germanickweduzresin
16Proto-Indo-Europeangʷet-resin, gum; to say, speak
17Proto-Indo-Europeangū-to bend; curve; arch; vault; to bow, bend, arch,...

via English sense

StepLanguageWordMeaning
1EnglishsenseAny of the manners by which living beings...
2Middle Englishsensemeaning, signification; interpretation
3Old Frenchsensreason; ability to reason or think
4Latinsēnsusfaculty or power of perceiving; perception, feeling, sensation, sense
5Dutchcensusa census
6Latincensuscensus, a registering of the populace and their...
7LatincenseoI give an opinion; I think, suppose or judge; I...
8Proto-Italickensēōto give an opinion
9Proto-Italickensējō
10Proto-Indo-Europeanḱens-éh₁-ye-ti
11Proto-Indo-Europeanḱens-to announce, to proclaim; to put in order
12Proto-Indo-Europeanḱem-to cover, conceal; hornless
Every word from Proto-Indo-European gū-