congeal
Concise Oxford English Dictionary © 2008 Oxford University Press:
congeal /kənˈdʒiːl/
▶verb become semi-solid, especially on cooling.
– derivatives
congelation /ˌkɒndʒəˈleɪʃ(ə)n/ noun.
congelation /ˌkɒndʒəˈleɪʃ(ə)n/ noun.
– origin ME: from OFr. congeler, from L. congelare, from con- ‘together’ + gelare ‘freeze’ (from gelu ‘frost’).
'congeal' also found in these Oxford entries:

