divide
v.
early 14c., from Latin dividere "to force apart, cleave, distribute," from dis- "apart" (see dis-) + -videre "to separate," from PIE root *weidh- "to separate" (see widow; also see with).Mathematical sense is from early 15c. Divide and rule (c.1600) translates Latin divide et impera, a maxim of Machiavelli. Related: Divided; dividing.
n.
1640s, "act of dividing," from divide, v.. Meaning "watershed, separation between river valleys" is first recorded 1807, American English.
〔李〕[di-（di-）=apart 开；vid=to separate 分；-e⇒“to separate apart 分割开”→] vt. separate into parts 分，划分
〔李〕[di-(dis-)=apart分开；vid=to see看见；-e→“to see apart分开来看”→] v.① separate into parts划分