Definition: tad. affix इक or क (according to P. VII.3.51), causing the addition of आ, and not ई,..for forming the feminine base, applied (1) to the word नौ and words with two syllables in the sense of 'crossing' or 'swimming' over; cf. P.IV.4. 7; e.g. नाविकः नाविका, बाहुकः बाहुक्रा; (2) to the words वस्र, क्रय, and विक्रय and optionally with छ to अायुघ in the sense of maintaining (तेन जीवति); cf. P. IV. 4.13, 14; (3) to the word प्रतिपथ, words ending with अगार, to the word शत, to words showing completion (पूरणवाचिन्), to the words अर्ध, भाग, वस्त्र, द्रव्य, षण्मास and. श्राद्ध in specified senses; cf. P. IV 4.42, 70, V. 1.21, 48, 49, 51, 84, V. 2, 85, and 109; (4) to words ending in अ as also to the words headed by व्रीहि, and optionally with the affix इल्च् to तुन्द and with the affix व to केशin the sense of मतुप्(possession); cf P.V. 2. 115, 116, 117 and 109.