repr. L. bi-
= Gr. di-
, Skr. dvi-
) twice, doubly, two-, in L. chiefly in adj. formations on sb. stems, as BICEPS
of two colours, also with pp. ending, as biformātus
of two forms; in a few, e.g. BIFID
, the formation is on a vb.-stem. The prefix appears in Eng. first in adoptions from F., as bigam
XIII (cf. BIGAMOUS
), later from L. words, as biformed
XVI (L. biformis
XVI (L. bipartītus
). From XVII the L. analogy was widely extended and the prefix used with any adj. to express that a quality or property is doubled or repeated; in mod. scientific terminology forms in -ate
are most frequently employed.
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