kittle
adjective
[ ˈkɪt(ə)l ]
• difficult to deal with; prone to erratic behaviour.
Origin:
mid 16th century: from kittle ‘to tickle’ (now Scots and dialect), probably from Old Norse kitla .
kittle
verb
• (of a cat) give birth.
• "she has kittled in my chair"
Origin:
mid 16th century: perhaps a back-formation of kitling ‘young animal, cub’.