Wær-sagol

According to the Old English Dictionary:

wær-sagol

adj. Cautious in speech, careful of what one says:--Se ðe wǽre leássagol, weorðe se sóðsagol; se ðe wǽre bæcslitol, weorðe se wærsagol; se ðe wǽre stuntwyrde, weorðe se wíswyrde, Wulfst. 72, 17. wær-sagol