Reck

Do not, as some ungracious pastors do, / Show me the steep and thorny way to heaven, / Whiles, like a puffed and reckless libertine, / Himself the primrose path of dalliance treads, / And recks not his own rede.

Source: wiktionary

[…]with that care lost / went all his fear: of God, or hell, or worse / he recked not[…]

Source: wiktionary

Little thou reck'st of this sad store! Would thou might never reck them more!

Source: wiktionary

She recks not now, as of old, whether her word carries with it the sting or the sweet—it is not now in her thought to ask whether pain or pleasure follows the thoughtless slight or the scornful pleasantry. The victim suffers, but she recks not of his grief.

Source: wiktionary