hardly
‘in a hard manner, with great exertion or effort’
Lexical development traced from the Tamil root:
E. harly, heartlice < O.E. heardlice ‘sternly, severely, harshly; bravely; excessively’ < heard ‘solid and firm, not soft’ < Proto-G. hardu- + -ly < haad < kortu- < kar- < Tamil kaṭu