▁his ▁career ▁were ▁most ▁likely ▁his ▁Es per anto ▁translation ▁of ▁B oles ław ▁Pr us ' ▁historical ▁novel , ▁F ara on ▁( Ph ara oh ), ▁and ▁one ▁of ▁the ▁first ▁Es per anto ▁diction aries , ▁V ort aro ▁de ▁Es per anto . ▁ ▁Be in ▁is , ▁however , ▁probably ▁best ▁known ▁for ▁his ▁sudden , ▁comment - less ▁ 1 9 1 1 ▁disapp earance ▁from ▁the ▁Es per anto ▁scene . ▁ ▁Inter view ed ▁twenty ▁years ▁later , ▁in ▁ 1 9 3 1 , ▁by ▁the ▁Es per anto ▁magazine , ▁Literatur a ▁Mond o ▁( World ▁of ▁Liter ature ), ▁he ▁spoke ▁of ▁Es per anto ' s ▁st alled ▁progress , ▁and ▁said ▁that ▁he ▁no ▁longer ▁regarded ▁the ▁language ▁as ▁a ▁vi able ▁solution ▁to ▁the ▁need ▁for ▁an ▁international ▁language . ▁ ▁Short ly ▁after ▁he ▁had ▁left ▁the ▁movement , ▁Es per ant ists ▁co ined ▁the ▁word ▁k abei , ▁after ▁" K abe ," ▁meaning ▁" to ▁fer vent ly ▁and ▁successfully ▁particip ate ▁in ▁Es per anto , ▁then ▁suddenly ▁and ▁sil ently ▁drop ▁out ." ▁ ▁The ▁expression , ▁k abei , ▁remains ▁in ▁use ▁by ▁Es per ant ists ▁to ▁this ▁day . ▁ ▁See ▁also ▁▁▁ ▁Con struct ed ▁languages ▁ ▁Notes ▁▁▁▁▁▁ ▁Category : Pol ish ▁Es per ant ists ▁Category : W rit ers ▁of ▁Es per anto ▁literature ▁Category : Pol ish – Es per anto ▁transl ators ▁Category :