coalesced
Concise Oxford English Dictionary © 2008 Oxford University Press:
coalesce /ˌkəʊəˈlɛs/
▶verb come or bring together to form one mass or whole: the puddles had coalesced into shallow streams.
– derivatives
coalescence noun,
coalescent adjective.
coalescence noun,
coalescent adjective.
– origin C16: from L. coalescere, from co- + alescere ‘grow up’.
'coalesced' also found in these Oxford entries:

