Tidbit
来自Big Physics
mid 17th century (as tyd bit, tid-bit ): from dialect tid ‘tender’ (of unknown origin) + bit1.
wiktionary
From tid(“fond, tender, nice”) + bit(“morsel”).
etymonline
tidbit (n.)
1630s, probably from dialectal tid "fond, solicitous, tender" (perhaps by influence of tit (n.2)) + bit (n.1) "morsel."