词根词缀：duc-, -duce, -duct, -ducent, -ductor, -duction, -ductive, -ducer, -ducement, -ducation

【来源及含义】Latin: to lead, leading; bringing; to take; to draw along or out

【相关词根词缀】 Cross references of word families related to "bear, carry, bring": -fer; ger-; later-, -lation; phoro-; port-. A cross reference of word units that are related, directly and/or indirectly, with "tube, pipe": aulo-; can-, cann-; fistul-; siphon-; syringo-; tub-.

【同源单词】abduce, abducens, abducent, abducent, abduct, abductee

词根词缀：super-, supra-, sur-

【来源及含义】Latin: above, over, more than; excessive

【相关描述】Sur- is a form of super- formed through the French and shouldn't be confused with another assimilated sur- form that comes from sub- and means: "under, below, beneath".

In some words, super- is amplified to mean: "on top of; higher in rank or position than; superior to; greater in quality, amount, or degree than others of its kind; to a degree greater than others of its kind; to a degree greater than normal; extra, additional".

【相关词根词缀】 Related "above, over, beyond the normal, excessive" word units: epi-; hyper-; ultra-, ult-. Inter-related cross references, directly or indirectly, involving word units meaning "more, plentiful, fullness, excessive, over flowing": copi-; exuber-; hyper-; multi-; opulen-; ple-; pleio-; plethor-; poly-; total-; ultra-; undu-.

【同源单词】anterosuperior, archaeological survey, beta-gamma survey meter, costosuperior, cybersurfer, electromagnetic surveying