Thaddeus has a genuinely debated root, with proposals linking it to a word for "heart" or "courage" on one side and to "praise" on the other, with no consensus among scholars. Both readings converge on something admired -- either bravery itself or the recognition that tends to follow it.
The vertue of a Planet is in that House, whose beginning or cusp a Planet precedes by no greater space than five degrees. - William Lilly (1602.-1681.)