词根词缀：caut-

【来源及含义】Latin: wary, careful, heedful; be on one's guard, to take heed; from cavere, to look out, to beware

【同源单词】cautel, cautela, cautelous, cautelously, cautio, cautio usufructuaria

词根词缀：pre-, prae-

【来源及含义】Latin: before [both in time and place]

【相关描述】The prefix prae- can actually be substituted for pre- because both of them are different spellings for the same prefix meaning "before".

【相关词根词缀】 Related before-word units: ante-; antero-; anti-; pro-. Related "time" units: aevum, evum; archaeo-, archeo-; Calendars; chrono-; horo-; Quotes: Time; tempo-.

【同源单词】preacquaint, preacquaintance, preagonal, pre-agricultural, preamble, preambular