1.b> ; , ; ; many of the problems had their origin in post-war Europe ; the origin of a river ; the origin of a quarrel ;
2.b> , ; aristocratic origin , , ; obscure [unknown, divine] origin [, / ] ; of humble origin / ; to trace the origin of a word ; the origin of species .i> ;
3.b> .i>, .i> (.i> origin of coordinates);
4.b> .i> ; ;
origin of forceb> .i> .