====== yatha ======
===== yathā =====

//adverbe// (invariable) : **comme**, comme si, conformément à, à la manière de, selon, de même que
  * expressions : **yathā kālaṃ** : à temps, au moment opportun ; **yathā padese** : au bon endroit ; **yathā manena** : de tout coeur, sincèrement ; **yathā ... tathā** ： de même que... de même, comme... comme ; aussi vrai que...

//conjonction// (invariable) : **puisque**, si bien que, de telle sorte que, afin que

=====Pali-English Dictionary, TW Rhys Davids, William Stede=====
**yathā** （adv．） [fr．ya°； Vedic yathā； cp．kathā，tathā] as，like，in relation to，after （the manner of）．-- As prep．（with Acc．）： according （to some condition，norm or rule）： //yathā kāmaṃ// （already Vedic） according to his desire，after his liking PvA．113，136； //yathā kālaṃ// in time，timely PvA．78； //yathā matiṃ// to his own mind or intention Pv IV．167； //yathā ruciṃ// to his satisfaction，amply，satisfactorily PvA．88，126，242； //yathā vibhavaṃ// Acc．to their wealth，i．e．plentifully PvA．53； //yathā sukhaṃ// as they liked or pleased PvA．133．Sometimes with Loc．： //yathā padese// “according to place，” in the right place J．III，391．Or Instr．： //yathā sattiyā// as much as you can DhA．I，92； //yathā manena// from his heart，sincerely，voluntarily DhA．I，42．-- Also with ger．//yathā haritvā// according to his taking （or reward：see under cpd．°bhata） It．14 （y．h．nikkhipeyya，which Seidenstücker，not doing justice to context translates “so wie man etwas nimmt und dann wegwirft”）．With foll．adj．expressing something like “as it were” and often untranslateable （see cpds．） -- As conjunction ： “as if，” or “so that” ： //yathā mata// like dead Dh．21； //yathā na// “in order that not”：Vism．31 （y．sarīre ābādhaṃ na uppādeti，evaṃ tassa vinodan’atthaṃ）； DhA．I，311 （y．assa patitaṭthānaṃ na passāmi，tathā naṃ chaḍḍessāmi：so that I shall not see ．．．thus shall I throw him）．-- As adv．just，as，so，even ； in combn with other particles ： **yathā kathaṃ pana** how so then，how is it then that S．II，283 （cp．yathā tathaṃ under cpds．）； **yathā kiṃ viya** somewhat like this Miln．91； **yathā pana** like as DhA．I，158； **yatha-r-iva** （for //yathā-iva//） just as D．I，90； **yathā pi ．．． evaṃ** just as ．．．so Dh．51--52．-- **yatha-yidaṃ** （for yathā-idaṃ） positive ： “as just this，” “so that，” “e．g．” “like，” “i．e．”； after negation “but” It．8，9 （na aññaṃ ．．．yathayidaṃ）； Sn．1092 （tvañ ca me dīpam akkhāhi，yathayidaṃ n’âparaṃ siyā “so that there be no further ill”； cp．SnA 597）．See also the enlarged forms seyyathā & seyyathīdaṃ．-- In correlation with  **yathā ... tathā** ： the same ．．．as，like ．．．as，as ．．．so； Pv．I，123 （yath’āgato tathā-gato as he has come so has he gone）．Often elliptically in direct juxtaposition ： **yathā tathā** in whatever way，in such & such a manner； so and so，according to the occasion； also “correctly，truly，in reality” Sn．504 （tvaṃ h’ettha jānāsi y．t．idaṃ）； PvA．199 （y．t．vyākāsi）．

=====Dictionnaire Héritage du Sanscrit, Inria, Gérard Huet (dir.)=====
**yathā** [ya_1-thā] conj. comme, selon, puisque, conformément à ; de même que, comme si — iic. id. | [suppl. de tathā] de sorte que, afin que ; ceux qui.

**na ... yathā** : non pas tant ... que.
**yathā ... tathā** : aussi vrai que ...