Etymology: < Middle Dutch pip, pippe (probably 14th cent.; Dutch pip) < either post-classical Latin pipita (although this is attested comparatively late: 9th cent.) or an unattested post-classical Latin form *pippita (see below). Compare Middle Low German pip (German regional (Low German) pipp, pip), Old High German pfipfiz (Middle High German phiphiz, early modern German pfipfis, pfipfs, also pfiffe, German regional (southern) pfipfes, pfipfis; compare German †Pfipps, Pips ( < German regional (Rhineland)).Post-classical Latin pipita probably represents an alteration (perhaps assimilative and via a form *pippita ) of classical Latin pītuīta (see pituita n.). In Romance languages post-classical Latin pipita or the unattested *pippita give rise to e.g. French pépie (beginning of 13th cent. in Old French as pepie; compare French regional (Normandy, Picardy) pipie), Old Occitan pepida (c1220; Occitan pepida), Catalan pepida (1670 or earlier; also as †pipida (1472)), Spanish pepita (a1343, earlier as †petita (end of 13th cent.)), Portuguese pevide, Italian pipita (a1320), Sardinian pipíđa, piƀiđa. Earlier currency in English is perhaps implied by the surname William Piphed (1273).

Etymology: Apparently shortened < pippin n.; given the chronological gap between senses 1 and 2, apparently shortened independently in each of these senses. With sense 2 compare earlier paip n.; in this sense perhaps influenced by association with pip n.³ Perhaps compare also Italian regional (Tuscany) pippo , pippolo (see pippin n.).

Etymology: Origin uncertain. Perhaps compare pippin n. (compare later pip n.² 2) or pick n.¹ 7 (compare slightly later pick n.⁴). In sense 1b perhaps influenced by peep v.¹A derivation < peep v.¹ has also been suggested; compare Middle High German ouge , German Auge , lit. ‘eye’, in sense ‘a dot on a die’ and later snake eyes n. at snake n. Compounds 4a (compare later peeper n.² 3, peep n.² 3a). For a folk etymology connecting pippin n. with sense 2, see quot. 1676 at sense 2.

Etymology: Apparently an arbitrary use of either pip n.² or pip n.³

Etymology: Imitative. Compare earlier pip v.⁵

Etymology: < pip n.¹

Etymology: Apparently a variant of either peep v.² or pipe v.¹ with shortening of the vowel.

Etymology: Apparently < either pip n.² or pip n.³, either word perhaps being taken metaphorically in the sense ‘small ball’ (compare sense 2).For a comparable semantic development perhaps compare pill v.²

Etymology: Origin uncertain; perhaps imitative. Compare earlier pip v.² and chip v.¹ Perhaps compare also peep v.¹

Etymology: Imitative. With sense 1 compare earlier pip-pip int., pip-pip n. With sense 2 compare slightly earlier pip n.⁵