From random + -ly.

• IPA: /ˈɹændm̩li/

randomly

1. In a random manner.

   I just randomly remembered this dream from 2 years ago.

2. (computing) By random access; at any point at a given time; not sequentially.
   • 1989, M. K. Roy, Debabrata Ghosh Dastidar, COBOL Programming, page 314:

     When a file is accessed randomly, the programmer must specify the relative record number.

• French: en vrac, par hasard, accidentellement
• German: zufällig
• Portuguese: aleatoriamente, ao acaso
• Spanish: al azar, aleatoriamente