due to

1. Attributable to, because of, as in Due to scanty rainfall, we may face a crop failure . This usage has been criticized by some authorities, but today it is widely considered standard. [Early 1900s] Also see on account of .

2. Likely to, announced as, as in Betty bought more of the stock, believing it was due to rise , or The play is due to open next week . [Early 1900s]

3. Owing or payable to, as in We must give our staff whatever vacation is due to them .