stip = to press together

詞根stip來自拉丁語stip意爲to press together。
1.stipulate [使一起按壓stip(=press together)]
vt.（作爲條件）講定，約定，槼定；確定，保証
stipulation n.約定，槼定；條款
I stipulated that the company pay my moving expenses before accepting the job. 我要求那家公司先支付我搬家的費用，然後我才會接受這份工作。

2.constipate v.使患便秘 *con<com(=intensive)
constipated adj.便秘的
constipation n.便秘
find some kinds of food constipating 發現一些引起便秘的食物