Thitherto : সেই সময়ের আগে;
Related Words
thereat  thereto  thirty  thitherto  thitherward  See Words Also In
1.Google-Translator 2.Dictionary.com 3.Merriam-Webster 4.Wikipedia 5.Thesaurus.com
Appropriate Prepositions
Alarm at, by, for(আশংকা করা/শঙ্কিত হওয়া): I was not alarmed at/by the news, but I was alarmed for their safety.
Damage to (ক্ষতি): The flood caused much damage to crops last year.
Fail in (ব্যর্থ হওয়া): He failed in getting internet connection in his room.
Quarrel over (কোন বিষয়ে ঝগড়া করা): Do not quarrel over this trifling matter, let it be drop.
Relation with (সম্পর্ক): I have no relation with the culprit.
Browse All Appropriate Prepositions
Idioms
After all - (সব কথার পরেও): I rang and told her I couldn't come after all.
Do yeoman’s service (বিশেষ উপকার করা): Freedom fighters have done yeoman’s service for country.
In one’s teens (তের থেকে উনিশ বছর বয়সের মাঝে): She is yet in her teens.
In the long run (পরিণামে): You will have to suffer in the long run.
With a lavish hand (মুক্ত হস্তে)— Give away something with a lavish hand.