形容詞 erudite:

1. having or showing profound knowledge
   同義詞：learned

1. Possessing or demonstrating profound, often systematic knowledge; erudite.
   博學(xué)的具有或顯示出深?yuàn)W并通常是系統(tǒng)的知識(shí)的; 有學(xué)問的
2. Having great learning; erudite.
   有學(xué)問的; 博學(xué)的

er.u.dite

adj.（形容詞）
Characterized by erudition; learned.See Synonyms at learned
博學(xué)的：具有博學(xué)的特征；有學(xué)問的參見 learned

來源：
Middle English erudit
中古英語(yǔ) erudit
from Latin ôrudotus [past participle of] ôrudore [to instruct]
源自 拉丁語(yǔ) ôrudotus [] ôrudore的過去分詞 [教導(dǎo)]
ô-, ex- [ex-]
ô-, ex- [表示.不無.]
rudis [rough, untaught] * see rude
rudis [粗魯?shù)?，沒受教育的] *參見 rude

【引伸】
er.udite.ly
adv.（副詞）
er.udite.ness
n.（名詞）
<注釋>One might like to beerudite but hesitate to berude. This preference is supported by the etymological relationship betweenerudite and rude. Erudite comes from the Latin adjectiveôrudotus, .well-instructed, learned,. from the past participle of the verbôrudore, .to educate, train.. The verb is in turn formed from the prefixex-, .out, out of,. and the adjective rudis, .untaught, untrained,. the source of our word rude. The English worderudite is first recorded in a work possibly written before 425 with the senses .instructed, learned..Erudite meaning .learned. is supposed to have become rare except in sarcastic use, at least during the latter part of the 9th century, but the word now seems to have been restored to favor.
一個(gè)人想成為erudite （博學(xué)的）， 但卻猶豫會(huì)成為rude （粗魯?shù)模?這個(gè)優(yōu)先選擇可以由erudite 和 rede這兩個(gè)詞在語(yǔ)源學(xué)上的關(guān)系得出。 Erudite 源于拉丁語(yǔ)的形容詞eruditus ，指.受過良好教育的、博學(xué)的，. 來源于動(dòng)詞erudire 的過去分詞，指.教育、訓(xùn)練.。 這個(gè)動(dòng)詞反過來由前綴ex- ，（表示.出、離開.）和形容詞 rudis 意為.沒受教育的，沒受訓(xùn)練的.組成，它又是現(xiàn)代詞 rude 的來源。 英語(yǔ)單詞erudite 最早記錄于大約寫在425年以前的一本著作中， 那時(shí)意思是.受教育的、博學(xué)的.。至少在9世紀(jì)后半期，Erudite 意思為.博學(xué)的.，除了諷刺的用法外已經(jīng)很少被人所用， 但是現(xiàn)在這個(gè)單詞好象又逐漸被人們使用起來