The word pāṇigha and tāḍagha are irregularly formed when denoting an artificier.,
These forms are thus evolved. The affix क is employed after the verb हन् in composition with पाणि 'hand' and ताड 'a blow' as object; then the टि portion of हन् i. e. अन् is elided, and ह is changed into घ irregularly. Thus पाणि + हन् + क = पाणि + ड् + अ = पाणिघः 'a drummer' (workman or handicraftsman); ताडघः 'a smith'.
Why 'when denoting an artificer'? Observe पाणिघातः 'boxing'; ताडघातः 'hammering'.
Vart:- The word राजघः should be enumerated in this connection; राजघः 'a regicide'.,