thus (adv.)

Old English þus "in this way, as follows," related to þæt "that" and this; from Proto-Germanic *thus- (source also of Old Saxon and Old Frisian thus, Middle Dutch and Dutch dus), from PIE *to-.

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Definitions of thus from WordNet
thus (adv.)
(used to introduce a logical conclusion) from that fact or reason or as a result;
it is late and thus we must go
Synonyms: therefore / hence / thence / so
thus (adv.)
in the way indicated; (`thusly' is a nonstandard variant);
set up the pieces thus
Synonyms: thusly / so
thus (n.)
an aromatic gum resin obtained from various Arabian or East African trees; formerly valued for worship and for embalming and fumigation;
Synonyms: frankincense / olibanum / gum olibanum