Where does “afloat” come from?

Afloat comes from English a- (prefix) and English float, which derives from Latin ad- and Latin ad combined with a root from Proto-Indo-European h₂epo and Proto-Indo-European al-.

afloat (English): floating; Covered with water bearing floating...

Definitions

  1. floating; Covered with water bearing floating...

Ancestry of “afloat”, step by step

StepLanguageWordMeaning
1Englishā-
2Old Englishġe-used as an intensifier for verbs, indicating completeness or perfection
3Proto-West Germanicga-used as an intensifier for verbs, indicating...
4Proto-Germanicga-Indicates association or togetherness; co-;...
5Proto-Indo-Europeanḱómbeside, near, by, with
6Proto-Indo-EuropeanḱeDeictic particle, here; Post-positional...
7Middle Englishkyt
8Germankittputty certain kinds of cement used for fixing e.g. window panes
9Old High Germankuti
10Proto-West Germanickwidugum, resin
11Proto-Germanickweduzresin
12Proto-Indo-Europeangʷet-resin, gum; to say, speak
13Proto-Indo-Europeangū-to bend; curve; arch; vault; to bow, bend, arch,...
Every word from Proto-Indo-European gū-